64320880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2689}}^1$

素因数の和:2738

約数の個数: 80

約数和(自身を含む): 168114240

約数和(自身を除く): 103793360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1495, 1840, 2392, 2689, 2990, 4784, 5378, 5980, 10756, 11960, 13445, 21512, 23920, 26890, 34957, 43024, 53780, 61847, 69914, 107560, 123694, 139828, 174785, 215120, 247388, 279656, 309235, 349570, 494776, 559312, 618470, 699140, 804011, 989552, 1236940, 1398280, 1608022, 2473880, 2796560, 3216044, 4020055, 4947760, 6432088, 8040110, 12864176, 16080220, 32160440, 64320880]

約数ペア:

[(1, 64320880), (2, 32160440), (4, 16080220), (5, 12864176), (8, 8040110), (10, 6432088), (13, 4947760), (16, 4020055), (20, 3216044), (23, 2796560), (26, 2473880), (40, 1608022), (46, 1398280), (52, 1236940), (65, 989552), (80, 804011), (92, 699140), (104, 618470), (115, 559312), (130, 494776), (184, 349570), (208, 309235), (230, 279656), (260, 247388), (299, 215120), (368, 174785), (460, 139828), (520, 123694), (598, 107560), (920, 69914), (1040, 61847), (1196, 53780), (1495, 43024), (1840, 34957), (2392, 26890), (2689, 23920), (2990, 21512), (4784, 13445), (5378, 11960), (5980, 10756)]