4055740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 9666720

約数和(自身を除く): 5610980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 821, 988, 1235, 1642, 2470, 3284, 4105, 4940, 8210, 10673, 15599, 16420, 21346, 31198, 42692, 53365, 62396, 77995, 106730, 155990, 202787, 213460, 311980, 405574, 811148, 1013935, 2027870, 4055740]

約数ペア:

[(1, 4055740), (2, 2027870), (4, 1013935), (5, 811148), (10, 405574), (13, 311980), (19, 213460), (20, 202787), (26, 155990), (38, 106730), (52, 77995), (65, 62396), (76, 53365), (95, 42692), (130, 31198), (190, 21346), (247, 16420), (260, 15599), (380, 10673), (494, 8210), (821, 4940), (988, 4105), (1235, 3284), (1642, 2470)]