25935380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 57879360

約数和(自身を除く): 31943980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 380, 521, 524, 655, 1042, 1310, 2084, 2489, 2605, 2620, 4978, 5210, 9899, 9956, 10420, 12445, 19798, 24890, 39596, 49495, 49780, 68251, 98990, 136502, 197980, 273004, 341255, 682510, 1296769, 1365020, 2593538, 5187076, 6483845, 12967690, 25935380]

約数ペア:

[(1, 25935380), (2, 12967690), (4, 6483845), (5, 5187076), (10, 2593538), (19, 1365020), (20, 1296769), (38, 682510), (76, 341255), (95, 273004), (131, 197980), (190, 136502), (262, 98990), (380, 68251), (521, 49780), (524, 49495), (655, 39596), (1042, 24890), (1310, 19798), (2084, 12445), (2489, 10420), (2605, 9956), (2620, 9899), (4978, 5210)]