25701520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1901}}^1$

素因数の和:1940

約数の個数: 60

約数和(自身を含む): 64740276

約数和(自身を除く): 39038756

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 1901, 2704, 3380, 3802, 6760, 7604, 9505, 13520, 15208, 19010, 24713, 30416, 38020, 49426, 76040, 98852, 123565, 152080, 197704, 247130, 321269, 395408, 494260, 642538, 988520, 1285076, 1606345, 1977040, 2570152, 3212690, 5140304, 6425380, 12850760, 25701520]

約数ペア:

[(1, 25701520), (2, 12850760), (4, 6425380), (5, 5140304), (8, 3212690), (10, 2570152), (13, 1977040), (16, 1606345), (20, 1285076), (26, 988520), (40, 642538), (52, 494260), (65, 395408), (80, 321269), (104, 247130), (130, 197704), (169, 152080), (208, 123565), (260, 98852), (338, 76040), (520, 49426), (676, 38020), (845, 30416), (1040, 24713), (1352, 19010), (1690, 15208), (1901, 13520), (2704, 9505), (3380, 7604), (3802, 6760)]