64845625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 91320768

約数和(自身を除く): 26475143

約数列:

[1, 5, 13, 23, 25, 65, 115, 125, 299, 325, 347, 575, 625, 1495, 1625, 1735, 2875, 4511, 7475, 7981, 8125, 8675, 14375, 22555, 37375, 39905, 43375, 103753, 112775, 186875, 199525, 216875, 518765, 563875, 997625, 2593825, 2819375, 4988125, 12969125, 64845625]

約数ペア:

[(1, 64845625), (5, 12969125), (13, 4988125), (23, 2819375), (25, 2593825), (65, 997625), (115, 563875), (125, 518765), (299, 216875), (325, 199525), (347, 186875), (575, 112775), (625, 103753), (1495, 43375), (1625, 39905), (1735, 37375), (2875, 22555), (4511, 14375), (7475, 8675), (7981, 8125)]