280379710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{821}}^1$

素因数の和:949

約数の個数: 64

約数和(自身を含む): 566745984

約数和(自身を除く): 286366274

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 71, 74, 130, 142, 185, 355, 370, 481, 710, 821, 923, 962, 1642, 1846, 2405, 2627, 4105, 4615, 4810, 5254, 8210, 9230, 10673, 13135, 21346, 26270, 30377, 34151, 53365, 58291, 60754, 68302, 106730, 116582, 151885, 170755, 291455, 303770, 341510, 394901, 582910, 757783, 789802, 1515566, 1974505, 2156767, 3788915, 3949010, 4313534, 7577830, 10783835, 21567670, 28037971, 56075942, 140189855, 280379710]

約数ペア:

[(1, 280379710), (2, 140189855), (5, 56075942), (10, 28037971), (13, 21567670), (26, 10783835), (37, 7577830), (65, 4313534), (71, 3949010), (74, 3788915), (130, 2156767), (142, 1974505), (185, 1515566), (355, 789802), (370, 757783), (481, 582910), (710, 394901), (821, 341510), (923, 303770), (962, 291455), (1642, 170755), (1846, 151885), (2405, 116582), (2627, 106730), (4105, 68302), (4615, 60754), (4810, 58291), (5254, 53365), (8210, 34151), (9230, 30377), (10673, 26270), (13135, 21346)]