7878780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1$

素因数の和:85

約数の個数: 216

約数和(自身を含む): 30375072

約数和(自身を除く): 22496292

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 37, 39, 42, 45, 52, 60, 63, 65, 70, 74, 78, 84, 90, 91, 105, 111, 117, 126, 130, 140, 148, 156, 169, 180, 182, 185, 195, 210, 222, 234, 252, 259, 260, 273, 315, 333, 338, 364, 370, 390, 420, 444, 455, 468, 481, 507, 518, 546, 555, 585, 630, 666, 676, 740, 777, 780, 819, 845, 910, 962, 1014, 1036, 1092, 1110, 1170, 1183, 1260, 1295, 1332, 1365, 1443, 1521, 1554, 1638, 1665, 1690, 1820, 1924, 2028, 2220, 2331, 2340, 2366, 2405, 2535, 2590, 2730, 2886, 3042, 3108, 3276, 3330, 3367, 3380, 3549, 3885, 4095, 4329, 4662, 4732, 4810, 5070, 5180, 5460, 5772, 5915, 6084, 6253, 6660, 6734, 7098, 7215, 7605, 7770, 8190, 8658, 9324, 9620, 10101, 10140, 10647, 11655, 11830, 12506, 13468, 14196, 14430, 15210, 15540, 16380, 16835, 17316, 17745, 18759, 20202, 21294, 21645, 23310, 23660, 25012, 28860, 30303, 30420, 31265, 33670, 35490, 37518, 40404, 42588, 43290, 43771, 46620, 50505, 53235, 56277, 60606, 62530, 67340, 70980, 75036, 86580, 87542, 93795, 101010, 106470, 112554, 121212, 125060, 131313, 151515, 175084, 187590, 202020, 212940, 218855, 225108, 262626, 281385, 303030, 375180, 393939, 437710, 525252, 562770, 606060, 656565, 787878, 875420, 1125540, 1313130, 1575756, 1969695, 2626260, 3939390, 7878780]

約数ペア:

[(1, 7878780), (2, 3939390), (3, 2626260), (4, 1969695), (5, 1575756), (6, 1313130), (7, 1125540), (9, 875420), (10, 787878), (12, 656565), (13, 606060), (14, 562770), (15, 525252), (18, 437710), (20, 393939), (21, 375180), (26, 303030), (28, 281385), (30, 262626), (35, 225108), (36, 218855), (37, 212940), (39, 202020), (42, 187590), (45, 175084), (52, 151515), (60, 131313), (63, 125060), (65, 121212), (70, 112554), (74, 106470), (78, 101010), (84, 93795), (90, 87542), (91, 86580), (105, 75036), (111, 70980), (117, 67340), (126, 62530), (130, 60606), (140, 56277), (148, 53235), (156, 50505), (169, 46620), (180, 43771), (182, 43290), (185, 42588), (195, 40404), (210, 37518), (222, 35490), (234, 33670), (252, 31265), (259, 30420), (260, 30303), (273, 28860), (315, 25012), (333, 23660), (338, 23310), (364, 21645), (370, 21294), (390, 20202), (420, 18759), (444, 17745), (455, 17316), (468, 16835), (481, 16380), (507, 15540), (518, 15210), (546, 14430), (555, 14196), (585, 13468), (630, 12506), (666, 11830), (676, 11655), (740, 10647), (777, 10140), (780, 10101), (819, 9620), (845, 9324), (910, 8658), (962, 8190), (1014, 7770), (1036, 7605), (1092, 7215), (1110, 7098), (1170, 6734), (1183, 6660), (1260, 6253), (1295, 6084), (1332, 5915), (1365, 5772), (1443, 5460), (1521, 5180), (1554, 5070), (1638, 4810), (1665, 4732), (1690, 4662), (1820, 4329), (1924, 4095), (2028, 3885), (2220, 3549), (2331, 3380), (2340, 3367), (2366, 3330), (2405, 3276), (2535, 3108), (2590, 3042), (2730, 2886)]