21719360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:280

約数の個数: 112

約数和(自身を含む): 58375296

約数和(自身を除く): 36655936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 130, 160, 184, 208, 227, 230, 260, 299, 320, 368, 416, 454, 460, 520, 598, 736, 832, 908, 920, 1040, 1135, 1196, 1472, 1495, 1816, 1840, 2080, 2270, 2392, 2951, 2990, 3632, 3680, 4160, 4540, 4784, 5221, 5902, 5980, 7264, 7360, 9080, 9568, 10442, 11804, 11960, 14528, 14755, 18160, 19136, 20884, 23608, 23920, 26105, 29510, 36320, 41768, 47216, 47840, 52210, 59020, 67873, 72640, 83536, 94432, 95680, 104420, 118040, 135746, 167072, 188864, 208840, 236080, 271492, 334144, 339365, 417680, 472160, 542984, 678730, 835360, 944320, 1085968, 1357460, 1670720, 2171936, 2714920, 4343872, 5429840, 10859680, 21719360]

約数ペア:

[(1, 21719360), (2, 10859680), (4, 5429840), (5, 4343872), (8, 2714920), (10, 2171936), (13, 1670720), (16, 1357460), (20, 1085968), (23, 944320), (26, 835360), (32, 678730), (40, 542984), (46, 472160), (52, 417680), (64, 339365), (65, 334144), (80, 271492), (92, 236080), (104, 208840), (115, 188864), (130, 167072), (160, 135746), (184, 118040), (208, 104420), (227, 95680), (230, 94432), (260, 83536), (299, 72640), (320, 67873), (368, 59020), (416, 52210), (454, 47840), (460, 47216), (520, 41768), (598, 36320), (736, 29510), (832, 26105), (908, 23920), (920, 23608), (1040, 20884), (1135, 19136), (1196, 18160), (1472, 14755), (1495, 14528), (1816, 11960), (1840, 11804), (2080, 10442), (2270, 9568), (2392, 9080), (2951, 7360), (2990, 7264), (3632, 5980), (3680, 5902), (4160, 5221), (4540, 4784)]