16545250625

素因数分解:

$5^4\times {\mathrm{2081}}^1\times {\mathrm{12721}}^1$

素因数の和:14822

約数の個数: 20

約数和(自身を含む): 20686506324

約数和(自身を除く): 4141255699

約数列:

[1, 5, 25, 125, 625, 2081, 10405, 12721, 52025, 63605, 260125, 318025, 1300625, 1590125, 7950625, 26472401, 132362005, 661810025, 3309050125, 16545250625]

約数ペア:

[(1, 16545250625), (5, 3309050125), (25, 661810025), (125, 132362005), (625, 26472401), (2081, 7950625), (10405, 1590125), (12721, 1300625), (52025, 318025), (63605, 260125)]