20212875

素因数分解:

$3^3\times 5^3\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 38413440

約数和(自身を除く): 18200565

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 53, 75, 113, 125, 135, 159, 225, 265, 339, 375, 477, 565, 675, 795, 1017, 1125, 1325, 1431, 1695, 2385, 2825, 3051, 3375, 3975, 5085, 5989, 6625, 7155, 8475, 11925, 14125, 15255, 17967, 19875, 25425, 29945, 35775, 42375, 53901, 59625, 76275, 89835, 127125, 149725, 161703, 178875, 269505, 381375, 449175, 748625, 808515, 1347525, 2245875, 4042575, 6737625, 20212875]

約数ペア:

[(1, 20212875), (3, 6737625), (5, 4042575), (9, 2245875), (15, 1347525), (25, 808515), (27, 748625), (45, 449175), (53, 381375), (75, 269505), (113, 178875), (125, 161703), (135, 149725), (159, 127125), (225, 89835), (265, 76275), (339, 59625), (375, 53901), (477, 42375), (565, 35775), (675, 29945), (795, 25425), (1017, 19875), (1125, 17967), (1325, 15255), (1431, 14125), (1695, 11925), (2385, 8475), (2825, 7155), (3051, 6625), (3375, 5989), (3975, 5085)]