68675625

素因数分解:

$3^2\times 5^4\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:476

約数の個数: 60

約数和(自身を含む): 128536980

約数和(自身を除く): 59861355

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 125, 145, 225, 261, 375, 421, 435, 625, 725, 1125, 1263, 1305, 1875, 2105, 2175, 3625, 3789, 5625, 6315, 6525, 10525, 10875, 12209, 18125, 18945, 31575, 32625, 36627, 52625, 54375, 61045, 94725, 109881, 157875, 163125, 183135, 263125, 305225, 473625, 549405, 789375, 915675, 1526125, 2368125, 2747025, 4578375, 7630625, 13735125, 22891875, 68675625]

約数ペア:

[(1, 68675625), (3, 22891875), (5, 13735125), (9, 7630625), (15, 4578375), (25, 2747025), (29, 2368125), (45, 1526125), (75, 915675), (87, 789375), (125, 549405), (145, 473625), (225, 305225), (261, 263125), (375, 183135), (421, 163125), (435, 157875), (625, 109881), (725, 94725), (1125, 61045), (1263, 54375), (1305, 52625), (1875, 36627), (2105, 32625), (2175, 31575), (3625, 18945), (3789, 18125), (5625, 12209), (6315, 10875), (6525, 10525)]