25971920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:169

約数の個数: 120

約数和(自身を含む): 69845976

約数和(自身を除く): 43874056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 113, 130, 136, 169, 170, 208, 221, 226, 260, 272, 338, 340, 442, 452, 520, 565, 676, 680, 845, 884, 904, 1040, 1105, 1130, 1352, 1360, 1469, 1690, 1768, 1808, 1921, 2210, 2260, 2704, 2873, 2938, 3380, 3536, 3842, 4420, 4520, 5746, 5876, 6760, 7345, 7684, 8840, 9040, 9605, 11492, 11752, 13520, 14365, 14690, 15368, 17680, 19097, 19210, 22984, 23504, 24973, 28730, 29380, 30736, 38194, 38420, 45968, 49946, 57460, 58760, 76388, 76840, 95485, 99892, 114920, 117520, 124865, 152776, 153680, 190970, 199784, 229840, 249730, 305552, 324649, 381940, 399568, 499460, 649298, 763880, 998920, 1298596, 1527760, 1623245, 1997840, 2597192, 3246490, 5194384, 6492980, 12985960, 25971920]

約数ペア:

[(1, 25971920), (2, 12985960), (4, 6492980), (5, 5194384), (8, 3246490), (10, 2597192), (13, 1997840), (16, 1623245), (17, 1527760), (20, 1298596), (26, 998920), (34, 763880), (40, 649298), (52, 499460), (65, 399568), (68, 381940), (80, 324649), (85, 305552), (104, 249730), (113, 229840), (130, 199784), (136, 190970), (169, 153680), (170, 152776), (208, 124865), (221, 117520), (226, 114920), (260, 99892), (272, 95485), (338, 76840), (340, 76388), (442, 58760), (452, 57460), (520, 49946), (565, 45968), (676, 38420), (680, 38194), (845, 30736), (884, 29380), (904, 28730), (1040, 24973), (1105, 23504), (1130, 22984), (1352, 19210), (1360, 19097), (1469, 17680), (1690, 15368), (1768, 14690), (1808, 14365), (1921, 13520), (2210, 11752), (2260, 11492), (2704, 9605), (2873, 9040), (2938, 8840), (3380, 7684), (3536, 7345), (3842, 6760), (4420, 5876), (4520, 5746)]