19958625

素因数分解:

$3^2\times 5^3\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 36528336

約数和(自身を除く): 16569711

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 113, 125, 157, 225, 339, 375, 471, 565, 785, 1017, 1125, 1413, 1695, 2355, 2825, 3925, 5085, 7065, 8475, 11775, 14125, 17741, 19625, 25425, 35325, 42375, 53223, 58875, 88705, 127125, 159669, 176625, 266115, 443525, 798345, 1330575, 2217625, 3991725, 6652875, 19958625]

約数ペア:

[(1, 19958625), (3, 6652875), (5, 3991725), (9, 2217625), (15, 1330575), (25, 798345), (45, 443525), (75, 266115), (113, 176625), (125, 159669), (157, 127125), (225, 88705), (339, 58875), (375, 53223), (471, 42375), (565, 35325), (785, 25425), (1017, 19625), (1125, 17741), (1413, 14125), (1695, 11775), (2355, 8475), (2825, 7065), (3925, 5085)]