20028997625

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{4391}}^1$

素因数の和:4827

約数の個数: 64

約数和(自身を含む): 30848283648

約数和(自身を除く): 10819286023

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 175, 325, 401, 455, 875, 1625, 2005, 2275, 2807, 4391, 5213, 10025, 11375, 14035, 21955, 26065, 30737, 36491, 50125, 57083, 70175, 109775, 130325, 153685, 182455, 285415, 350875, 399581, 548875, 651625, 768425, 912275, 1427075, 1760791, 1997905, 3842125, 4561375, 7135375, 8803955, 9989525, 12325537, 22890283, 44019775, 49947625, 61627685, 114451415, 160231981, 220098875, 308138425, 572257075, 801159905, 1540692125, 2861285375, 4005799525, 20028997625]

約数ペア:

[(1, 20028997625), (5, 4005799525), (7, 2861285375), (13, 1540692125), (25, 801159905), (35, 572257075), (65, 308138425), (91, 220098875), (125, 160231981), (175, 114451415), (325, 61627685), (401, 49947625), (455, 44019775), (875, 22890283), (1625, 12325537), (2005, 9989525), (2275, 8803955), (2807, 7135375), (4391, 4561375), (5213, 3842125), (10025, 1997905), (11375, 1760791), (14035, 1427075), (21955, 912275), (26065, 768425), (30737, 651625), (36491, 548875), (50125, 399581), (57083, 350875), (70175, 285415), (109775, 182455), (130325, 153685)]