20829375

素因数分解:

$3^2\times 5^4\times 7^1\times {\mathrm{23}}^2$

素因数の和:79

約数の個数: 90

約数和(自身を含む): 44916872

約数和(自身を除く): 24087497

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 25, 35, 45, 63, 69, 75, 105, 115, 125, 161, 175, 207, 225, 315, 345, 375, 483, 525, 529, 575, 625, 805, 875, 1035, 1125, 1449, 1575, 1587, 1725, 1875, 2415, 2625, 2645, 2875, 3703, 4025, 4375, 4761, 5175, 5625, 7245, 7875, 7935, 8625, 11109, 12075, 13125, 13225, 14375, 18515, 20125, 23805, 25875, 33327, 36225, 39375, 39675, 43125, 55545, 60375, 66125, 92575, 100625, 119025, 129375, 166635, 181125, 198375, 277725, 301875, 330625, 462875, 595125, 833175, 905625, 991875, 1388625, 2314375, 2975625, 4165875, 6943125, 20829375]

約数ペア:

[(1, 20829375), (3, 6943125), (5, 4165875), (7, 2975625), (9, 2314375), (15, 1388625), (21, 991875), (23, 905625), (25, 833175), (35, 595125), (45, 462875), (63, 330625), (69, 301875), (75, 277725), (105, 198375), (115, 181125), (125, 166635), (161, 129375), (175, 119025), (207, 100625), (225, 92575), (315, 66125), (345, 60375), (375, 55545), (483, 43125), (525, 39675), (529, 39375), (575, 36225), (625, 33327), (805, 25875), (875, 23805), (1035, 20125), (1125, 18515), (1449, 14375), (1575, 13225), (1587, 13125), (1725, 12075), (1875, 11109), (2415, 8625), (2625, 7935), (2645, 7875), (2875, 7245), (3703, 5625), (4025, 5175), (4375, 4761)]