20095625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 40

約数和(自身を含む): 28490880

約数和(自身を除く): 8395255

約数列:

[1, 5, 11, 25, 37, 55, 79, 125, 185, 275, 395, 407, 625, 869, 925, 1375, 1975, 2035, 2923, 4345, 4625, 6875, 9875, 10175, 14615, 21725, 23125, 32153, 49375, 50875, 73075, 108625, 160765, 254375, 365375, 543125, 803825, 1826875, 4019125, 20095625]

約数ペア:

[(1, 20095625), (5, 4019125), (11, 1826875), (25, 803825), (37, 543125), (55, 365375), (79, 254375), (125, 160765), (185, 108625), (275, 73075), (395, 50875), (407, 49375), (625, 32153), (869, 23125), (925, 21725), (1375, 14615), (1975, 10175), (2035, 9875), (2923, 6875), (4345, 4625)]