13978125

素因数分解:

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

素因数の和:109

約数の個数: 72

約数和(自身を含む): 29248128

約数和(自身を除く): 15270003

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, 15975, 21875, 22365, 26625, 28125, 37275, 39375, 44375, 62125, 65625, 79875, 111825, 133125, 186375, 196875, 221875, 310625, 399375, 559125, 665625, 931875, 1553125, 1996875, 2795625, 4659375, 13978125]

約数ペア:

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