28697145

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 47377920

約数和(自身を除く): 18680775

約数列:

[1, 3, 5, 15, 61, 79, 183, 237, 305, 395, 397, 915, 1185, 1191, 1985, 4819, 5955, 14457, 24095, 24217, 31363, 72285, 72651, 94089, 121085, 156815, 363255, 470445, 1913143, 5739429, 9565715, 28697145]

約数ペア:

[(1, 28697145), (3, 9565715), (5, 5739429), (15, 1913143), (61, 470445), (79, 363255), (183, 156815), (237, 121085), (305, 94089), (395, 72651), (397, 72285), (915, 31363), (1185, 24217), (1191, 24095), (1985, 14457), (4819, 5955)]