72984560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:642

約数の個数: 80

約数和(自身を含む): 186496992

約数和(自身を除く): 113512432

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 197, 220, 394, 421, 440, 788, 842, 880, 985, 1576, 1684, 1970, 2105, 2167, 3152, 3368, 3940, 4210, 4334, 4631, 6736, 7880, 8420, 8668, 9262, 10835, 15760, 16840, 17336, 18524, 21670, 23155, 33680, 34672, 37048, 43340, 46310, 74096, 82937, 86680, 92620, 165874, 173360, 185240, 331748, 370480, 414685, 663496, 829370, 912307, 1326992, 1658740, 1824614, 3317480, 3649228, 4561535, 6634960, 7298456, 9123070, 14596912, 18246140, 36492280, 72984560]

約数ペア:

[(1, 72984560), (2, 36492280), (4, 18246140), (5, 14596912), (8, 9123070), (10, 7298456), (11, 6634960), (16, 4561535), (20, 3649228), (22, 3317480), (40, 1824614), (44, 1658740), (55, 1326992), (80, 912307), (88, 829370), (110, 663496), (176, 414685), (197, 370480), (220, 331748), (394, 185240), (421, 173360), (440, 165874), (788, 92620), (842, 86680), (880, 82937), (985, 74096), (1576, 46310), (1684, 43340), (1970, 37048), (2105, 34672), (2167, 33680), (3152, 23155), (3368, 21670), (3940, 18524), (4210, 17336), (4334, 16840), (4631, 15760), (6736, 10835), (7880, 9262), (8420, 8668)]