19679075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 26519136

約数和(自身を除く): 6840061

約数列:

[1, 5, 13, 25, 65, 151, 325, 401, 755, 1963, 2005, 3775, 5213, 9815, 10025, 26065, 49075, 60551, 130325, 302755, 787163, 1513775, 3935815, 19679075]

約数ペア:

[(1, 19679075), (5, 3935815), (13, 1513775), (25, 787163), (65, 302755), (151, 130325), (325, 60551), (401, 49075), (755, 26065), (1963, 10025), (2005, 9815), (3775, 5213)]