256166820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{401}}^1$

素因数の和:452

約数の個数: 288

約数和(自身を含む): 988727040

約数和(自身を除く): 732560220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 169, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 338, 351, 364, 378, 390, 401, 420, 455, 468, 507, 540, 546, 585, 630, 676, 702, 756, 780, 802, 819, 845, 910, 945, 1014, 1092, 1170, 1183, 1203, 1260, 1365, 1404, 1521, 1604, 1638, 1690, 1755, 1820, 1890, 2005, 2028, 2340, 2366, 2406, 2457, 2535, 2730, 2807, 3042, 3276, 3380, 3510, 3549, 3609, 3780, 4010, 4095, 4563, 4732, 4812, 4914, 5070, 5213, 5460, 5614, 5915, 6015, 6084, 7020, 7098, 7218, 7605, 8020, 8190, 8421, 9126, 9828, 10140, 10426, 10647, 10827, 11228, 11830, 12030, 12285, 14035, 14196, 14436, 15210, 15639, 16380, 16842, 17745, 18045, 18252, 20852, 21294, 21654, 22815, 23660, 24060, 24570, 25263, 26065, 28070, 30420, 31278, 31941, 33684, 35490, 36090, 36491, 42105, 42588, 43308, 45630, 46917, 49140, 50526, 52130, 53235, 54135, 56140, 62556, 63882, 67769, 70980, 72180, 72982, 75789, 78195, 84210, 91260, 93834, 101052, 104260, 106470, 108270, 109473, 126315, 127764, 135538, 140751, 145964, 151578, 156390, 159705, 168420, 182455, 187668, 203307, 212940, 216540, 218946, 234585, 252630, 271076, 281502, 303156, 312780, 319410, 328419, 338845, 364910, 378945, 406614, 437892, 469170, 474383, 505260, 547365, 563004, 609921, 638820, 656838, 677690, 703755, 729820, 757890, 813228, 938340, 948766, 985257, 1016535, 1094730, 1219842, 1313676, 1355380, 1407510, 1423149, 1515780, 1642095, 1829763, 1897532, 1970514, 2033070, 2189460, 2371915, 2439684, 2815020, 2846298, 3049605, 3284190, 3659526, 3941028, 4066140, 4269447, 4743830, 4926285, 5692596, 6099210, 6568380, 7115745, 7319052, 8538894, 9148815, 9487660, 9852570, 12198420, 12808341, 14231490, 17077788, 18297630, 19705140, 21347235, 25616682, 28462980, 36595260, 42694470, 51233364, 64041705, 85388940, 128083410, 256166820]

約数ペア:

[(1, 256166820), (2, 128083410), (3, 85388940), (4, 64041705), (5, 51233364), (6, 42694470), (7, 36595260), (9, 28462980), (10, 25616682), (12, 21347235), (13, 19705140), (14, 18297630), (15, 17077788), (18, 14231490), (20, 12808341), (21, 12198420), (26, 9852570), (27, 9487660), (28, 9148815), (30, 8538894), (35, 7319052), (36, 7115745), (39, 6568380), (42, 6099210), (45, 5692596), (52, 4926285), (54, 4743830), (60, 4269447), (63, 4066140), (65, 3941028), (70, 3659526), (78, 3284190), (84, 3049605), (90, 2846298), (91, 2815020), (105, 2439684), (108, 2371915), (117, 2189460), (126, 2033070), (130, 1970514), (135, 1897532), (140, 1829763), (156, 1642095), (169, 1515780), (180, 1423149), (182, 1407510), (189, 1355380), (195, 1313676), (210, 1219842), (234, 1094730), (252, 1016535), (260, 985257), (270, 948766), (273, 938340), (315, 813228), (338, 757890), (351, 729820), (364, 703755), (378, 677690), (390, 656838), (401, 638820), (420, 609921), (455, 563004), (468, 547365), (507, 505260), (540, 474383), (546, 469170), (585, 437892), (630, 406614), (676, 378945), (702, 364910), (756, 338845), (780, 328419), (802, 319410), (819, 312780), (845, 303156), (910, 281502), (945, 271076), (1014, 252630), (1092, 234585), (1170, 218946), (1183, 216540), (1203, 212940), (1260, 203307), (1365, 187668), (1404, 182455), (1521, 168420), (1604, 159705), (1638, 156390), (1690, 151578), (1755, 145964), (1820, 140751), (1890, 135538), (2005, 127764), (2028, 126315), (2340, 109473), (2366, 108270), (2406, 106470), (2457, 104260), (2535, 101052), (2730, 93834), (2807, 91260), (3042, 84210), (3276, 78195), (3380, 75789), (3510, 72982), (3549, 72180), (3609, 70980), (3780, 67769), (4010, 63882), (4095, 62556), (4563, 56140), (4732, 54135), (4812, 53235), (4914, 52130), (5070, 50526), (5213, 49140), (5460, 46917), (5614, 45630), (5915, 43308), (6015, 42588), (6084, 42105), (7020, 36491), (7098, 36090), (7218, 35490), (7605, 33684), (8020, 31941), (8190, 31278), (8421, 30420), (9126, 28070), (9828, 26065), (10140, 25263), (10426, 24570), (10647, 24060), (10827, 23660), (11228, 22815), (11830, 21654), (12030, 21294), (12285, 20852), (14035, 18252), (14196, 18045), (14436, 17745), (15210, 16842), (15639, 16380)]