215053975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4549}}^1$

素因数の和:4651

約数の個数: 24

約数和(自身を含む): 279843200

約数和(自身を除く): 64789225

約数列:

[1, 5, 25, 31, 61, 155, 305, 775, 1525, 1891, 4549, 9455, 22745, 47275, 113725, 141019, 277489, 705095, 1387445, 3525475, 6937225, 8602159, 43010795, 215053975]

約数ペア:

[(1, 215053975), (5, 43010795), (25, 8602159), (31, 6937225), (61, 3525475), (155, 1387445), (305, 705095), (775, 277489), (1525, 141019), (1891, 113725), (4549, 47275), (9455, 22745)]