20126645

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 30640896

約数和(自身を除く): 10514251

約数列:

[1, 5, 7, 11, 35, 55, 61, 77, 305, 385, 427, 671, 857, 2135, 3355, 4285, 4697, 5999, 9427, 23485, 29995, 47135, 52277, 65989, 261385, 329945, 365939, 575047, 1829695, 2875235, 4025329, 20126645]

約数ペア:

[(1, 20126645), (5, 4025329), (7, 2875235), (11, 1829695), (35, 575047), (55, 365939), (61, 329945), (77, 261385), (305, 65989), (385, 52277), (427, 47135), (671, 29995), (857, 23485), (2135, 9427), (3355, 5999), (4285, 4697)]