990205580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:388

約数の個数: 192

約数和(自身を含む): 2694263040

約数和(自身を除く): 1704057460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 52, 58, 65, 70, 73, 91, 116, 130, 140, 145, 146, 182, 203, 257, 260, 290, 292, 364, 365, 377, 406, 455, 511, 514, 580, 730, 754, 812, 910, 949, 1015, 1022, 1028, 1285, 1460, 1508, 1799, 1820, 1885, 1898, 2030, 2044, 2117, 2555, 2570, 2639, 3341, 3598, 3770, 3796, 4060, 4234, 4745, 5110, 5140, 5278, 6643, 6682, 7196, 7453, 7540, 8468, 8995, 9490, 10220, 10556, 10585, 13195, 13286, 13364, 14819, 14906, 16705, 17990, 18761, 18980, 21170, 23387, 26390, 26572, 27521, 29638, 29812, 33215, 33410, 35980, 37265, 37522, 42340, 46774, 52171, 52780, 55042, 59276, 66430, 66820, 74095, 74530, 75044, 93548, 93805, 96889, 104342, 110084, 116935, 131327, 132860, 137605, 148190, 149060, 187610, 192647, 193778, 208684, 233870, 243893, 260855, 262654, 275210, 296380, 375220, 385294, 387556, 467740, 484445, 487786, 521710, 525308, 544069, 550420, 656635, 678223, 770588, 963235, 968890, 975572, 1043420, 1088138, 1219465, 1313270, 1356446, 1707251, 1926470, 1937780, 2176276, 2438930, 2626540, 2712892, 2720345, 3391115, 3414502, 3808483, 3852940, 4877860, 5440690, 6782230, 6829004, 7072897, 7616966, 8536255, 10881380, 13564460, 14145794, 15233932, 17072510, 19042415, 28291588, 34145020, 35364485, 38084830, 49510279, 70728970, 76169660, 99020558, 141457940, 198041116, 247551395, 495102790, 990205580]

約数ペア:

[(1, 990205580), (2, 495102790), (4, 247551395), (5, 198041116), (7, 141457940), (10, 99020558), (13, 76169660), (14, 70728970), (20, 49510279), (26, 38084830), (28, 35364485), (29, 34145020), (35, 28291588), (52, 19042415), (58, 17072510), (65, 15233932), (70, 14145794), (73, 13564460), (91, 10881380), (116, 8536255), (130, 7616966), (140, 7072897), (145, 6829004), (146, 6782230), (182, 5440690), (203, 4877860), (257, 3852940), (260, 3808483), (290, 3414502), (292, 3391115), (364, 2720345), (365, 2712892), (377, 2626540), (406, 2438930), (455, 2176276), (511, 1937780), (514, 1926470), (580, 1707251), (730, 1356446), (754, 1313270), (812, 1219465), (910, 1088138), (949, 1043420), (1015, 975572), (1022, 968890), (1028, 963235), (1285, 770588), (1460, 678223), (1508, 656635), (1799, 550420), (1820, 544069), (1885, 525308), (1898, 521710), (2030, 487786), (2044, 484445), (2117, 467740), (2555, 387556), (2570, 385294), (2639, 375220), (3341, 296380), (3598, 275210), (3770, 262654), (3796, 260855), (4060, 243893), (4234, 233870), (4745, 208684), (5110, 193778), (5140, 192647), (5278, 187610), (6643, 149060), (6682, 148190), (7196, 137605), (7453, 132860), (7540, 131327), (8468, 116935), (8995, 110084), (9490, 104342), (10220, 96889), (10556, 93805), (10585, 93548), (13195, 75044), (13286, 74530), (13364, 74095), (14819, 66820), (14906, 66430), (16705, 59276), (17990, 55042), (18761, 52780), (18980, 52171), (21170, 46774), (23387, 42340), (26390, 37522), (26572, 37265), (27521, 35980), (29638, 33410), (29812, 33215)]