25999220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{277}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 62279784

約数和(自身を除く): 36280564

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 277, 361, 380, 494, 554, 722, 988, 1108, 1235, 1385, 1444, 1805, 2470, 2770, 3601, 3610, 4693, 4940, 5263, 5540, 7202, 7220, 9386, 10526, 14404, 18005, 18772, 21052, 23465, 26315, 36010, 46930, 52630, 68419, 72020, 93860, 99997, 105260, 136838, 199994, 273676, 342095, 399988, 499985, 684190, 999970, 1299961, 1368380, 1999940, 2599922, 5199844, 6499805, 12999610, 25999220]

約数ペア:

[(1, 25999220), (2, 12999610), (4, 6499805), (5, 5199844), (10, 2599922), (13, 1999940), (19, 1368380), (20, 1299961), (26, 999970), (38, 684190), (52, 499985), (65, 399988), (76, 342095), (95, 273676), (130, 199994), (190, 136838), (247, 105260), (260, 99997), (277, 93860), (361, 72020), (380, 68419), (494, 52630), (554, 46930), (722, 36010), (988, 26315), (1108, 23465), (1235, 21052), (1385, 18772), (1444, 18005), (1805, 14404), (2470, 10526), (2770, 9386), (3601, 7220), (3610, 7202), (4693, 5540), (4940, 5263)]