28191675

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 49639680

約数和(自身を除く): 21448005

約数列:

[1, 3, 5, 15, 23, 25, 59, 69, 75, 115, 177, 277, 295, 345, 575, 831, 885, 1357, 1385, 1475, 1725, 4071, 4155, 4425, 6371, 6785, 6925, 16343, 19113, 20355, 20775, 31855, 33925, 49029, 81715, 95565, 101775, 159275, 245145, 375889, 408575, 477825, 1127667, 1225725, 1879445, 5638335, 9397225, 28191675]

約数ペア:

[(1, 28191675), (3, 9397225), (5, 5638335), (15, 1879445), (23, 1225725), (25, 1127667), (59, 477825), (69, 408575), (75, 375889), (115, 245145), (177, 159275), (277, 101775), (295, 95565), (345, 81715), (575, 49029), (831, 33925), (885, 31855), (1357, 20775), (1385, 20355), (1475, 19113), (1725, 16343), (4071, 6925), (4155, 6785), (4425, 6371)]