69890625

素因数分解:

$3^2\times 5^6\times 7^1\times {\mathrm{71}}^1$

素因数の和:114

約数の個数: 84

約数和(自身を含む): 146248128

約数和(自身を除く): 76357503

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 71, 75, 105, 125, 175, 213, 225, 315, 355, 375, 497, 525, 625, 639, 875, 1065, 1125, 1491, 1575, 1775, 1875, 2485, 2625, 3125, 3195, 4375, 4473, 5325, 5625, 7455, 7875, 8875, 9375, 12425, 13125, 15625, 15975, 21875, 22365, 26625, 28125, 37275, 39375, 44375, 46875, 62125, 65625, 79875, 109375, 111825, 133125, 140625, 186375, 196875, 221875, 310625, 328125, 399375, 559125, 665625, 931875, 984375, 1109375, 1553125, 1996875, 2795625, 3328125, 4659375, 7765625, 9984375, 13978125, 23296875, 69890625]

約数ペア:

[(1, 69890625), (3, 23296875), (5, 13978125), (7, 9984375), (9, 7765625), (15, 4659375), (21, 3328125), (25, 2795625), (35, 1996875), (45, 1553125), (63, 1109375), (71, 984375), (75, 931875), (105, 665625), (125, 559125), (175, 399375), (213, 328125), (225, 310625), (315, 221875), (355, 196875), (375, 186375), (497, 140625), (525, 133125), (625, 111825), (639, 109375), (875, 79875), (1065, 65625), (1125, 62125), (1491, 46875), (1575, 44375), (1775, 39375), (1875, 37275), (2485, 28125), (2625, 26625), (3125, 22365), (3195, 21875), (4375, 15975), (4473, 15625), (5325, 13125), (5625, 12425), (7455, 9375), (7875, 8875)]