19810730

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{821}}^1$

素因数の和:974

約数の個数: 32

約数和(自身を含む): 37877760

約数和(自身を除く): 18067030

約数列:

[1, 2, 5, 10, 19, 38, 95, 127, 190, 254, 635, 821, 1270, 1642, 2413, 4105, 4826, 8210, 12065, 15599, 24130, 31198, 77995, 104267, 155990, 208534, 521335, 1042670, 1981073, 3962146, 9905365, 19810730]

約数ペア:

[(1, 19810730), (2, 9905365), (5, 3962146), (10, 1981073), (19, 1042670), (38, 521335), (95, 208534), (127, 155990), (190, 104267), (254, 77995), (635, 31198), (821, 24130), (1270, 15599), (1642, 12065), (2413, 8210), (4105, 4826)]