18876675

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 33712128

約数和(自身を除く): 14835453

約数列:

[1, 3, 5, 15, 23, 25, 31, 69, 75, 93, 115, 155, 345, 353, 465, 575, 713, 775, 1059, 1725, 1765, 2139, 2325, 3565, 5295, 8119, 8825, 10695, 10943, 17825, 24357, 26475, 32829, 40595, 53475, 54715, 121785, 164145, 202975, 251689, 273575, 608925, 755067, 820725, 1258445, 3775335, 6292225, 18876675]

約数ペア:

[(1, 18876675), (3, 6292225), (5, 3775335), (15, 1258445), (23, 820725), (25, 755067), (31, 608925), (69, 273575), (75, 251689), (93, 202975), (115, 164145), (155, 121785), (345, 54715), (353, 53475), (465, 40595), (575, 32829), (713, 26475), (775, 24357), (1059, 17825), (1725, 10943), (1765, 10695), (2139, 8825), (2325, 8119), (3565, 5295)]