65040625

素因数分解:

$5^5\times {\mathrm{13}}^1\times {\mathrm{1601}}^1$

素因数の和:1639

約数の個数: 24

約数和(自身を含む): 87603768

約数和(自身を除く): 22563143

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1601, 1625, 3125, 8005, 8125, 20813, 40025, 40625, 104065, 200125, 520325, 1000625, 2601625, 5003125, 13008125, 65040625]

約数ペア:

[(1, 65040625), (5, 13008125), (13, 5003125), (25, 2601625), (65, 1000625), (125, 520325), (325, 200125), (625, 104065), (1601, 40625), (1625, 40025), (3125, 20813), (8005, 8125)]