18687040

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2539}}^1$

素因数の和:2579

約数の個数: 56

約数和(自身を含む): 46451520

約数和(自身を除く): 27764480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2539, 3680, 5078, 7360, 10156, 12695, 20312, 25390, 40624, 50780, 58397, 81248, 101560, 116794, 162496, 203120, 233588, 291985, 406240, 467176, 583970, 812480, 934352, 1167940, 1868704, 2335880, 3737408, 4671760, 9343520, 18687040]

約数ペア:

[(1, 18687040), (2, 9343520), (4, 4671760), (5, 3737408), (8, 2335880), (10, 1868704), (16, 1167940), (20, 934352), (23, 812480), (32, 583970), (40, 467176), (46, 406240), (64, 291985), (80, 233588), (92, 203120), (115, 162496), (160, 116794), (184, 101560), (230, 81248), (320, 58397), (368, 50780), (460, 40624), (736, 25390), (920, 20312), (1472, 12695), (1840, 10156), (2539, 7360), (3680, 5078)]