85120980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{521}}^1$

素因数の和:929

約数の個数: 96

約数和(自身を含む): 273611520

約数和(自身を除く): 188490540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 389, 420, 521, 778, 1042, 1167, 1556, 1563, 1945, 2084, 2334, 2605, 2723, 3126, 3647, 3890, 4668, 5210, 5446, 5835, 6252, 7294, 7780, 7815, 8169, 10420, 10892, 10941, 11670, 13615, 14588, 15630, 16338, 18235, 21882, 23340, 27230, 31260, 32676, 36470, 40845, 43764, 54460, 54705, 72940, 81690, 109410, 163380, 202669, 218820, 405338, 608007, 810676, 1013345, 1216014, 1418683, 2026690, 2432028, 2837366, 3040035, 4053380, 4256049, 5674732, 6080070, 7093415, 8512098, 12160140, 14186830, 17024196, 21280245, 28373660, 42560490, 85120980]

約数ペア:

[(1, 85120980), (2, 42560490), (3, 28373660), (4, 21280245), (5, 17024196), (6, 14186830), (7, 12160140), (10, 8512098), (12, 7093415), (14, 6080070), (15, 5674732), (20, 4256049), (21, 4053380), (28, 3040035), (30, 2837366), (35, 2432028), (42, 2026690), (60, 1418683), (70, 1216014), (84, 1013345), (105, 810676), (140, 608007), (210, 405338), (389, 218820), (420, 202669), (521, 163380), (778, 109410), (1042, 81690), (1167, 72940), (1556, 54705), (1563, 54460), (1945, 43764), (2084, 40845), (2334, 36470), (2605, 32676), (2723, 31260), (3126, 27230), (3647, 23340), (3890, 21882), (4668, 18235), (5210, 16338), (5446, 15630), (5835, 14588), (6252, 13615), (7294, 11670), (7780, 10941), (7815, 10892), (8169, 10420)]