20237320625

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{21401}}^1$

素因数の和:21527

約数の個数: 40

約数和(自身を含む): 27078238440

約数和(自身を除く): 6840917815

約数列:

[1, 5, 17, 25, 85, 89, 125, 425, 445, 625, 1513, 2125, 2225, 7565, 10625, 11125, 21401, 37825, 55625, 107005, 189125, 363817, 535025, 945625, 1819085, 1904689, 2675125, 9095425, 9523445, 13375625, 32379713, 45477125, 47617225, 161898565, 227385625, 238086125, 809492825, 1190430625, 4047464125, 20237320625]

約数ペア:

[(1, 20237320625), (5, 4047464125), (17, 1190430625), (25, 809492825), (85, 238086125), (89, 227385625), (125, 161898565), (425, 47617225), (445, 45477125), (625, 32379713), (1513, 13375625), (2125, 9523445), (2225, 9095425), (7565, 2675125), (10625, 1904689), (11125, 1819085), (21401, 945625), (37825, 535025), (55625, 363817), (107005, 189125)]