390867960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{465319}}^1$

素因数の和:465340

約数の個数: 64

約数和(自身を含む): 1340121600

約数和(自身を除く): 949253640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 465319, 930638, 1395957, 1861276, 2326595, 2791914, 3257233, 3722552, 4653190, 5583828, 6514466, 6979785, 9306380, 9771699, 11167656, 13028932, 13959570, 16286165, 18612760, 19543398, 26057864, 27919140, 32572330, 39086796, 48858495, 55838280, 65144660, 78173592, 97716990, 130289320, 195433980, 390867960]

約数ペア:

[(1, 390867960), (2, 195433980), (3, 130289320), (4, 97716990), (5, 78173592), (6, 65144660), (7, 55838280), (8, 48858495), (10, 39086796), (12, 32572330), (14, 27919140), (15, 26057864), (20, 19543398), (21, 18612760), (24, 16286165), (28, 13959570), (30, 13028932), (35, 11167656), (40, 9771699), (42, 9306380), (56, 6979785), (60, 6514466), (70, 5583828), (84, 4653190), (105, 3722552), (120, 3257233), (140, 2791914), (168, 2326595), (210, 1861276), (280, 1395957), (420, 930638), (840, 465319)]