18876845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 25740288

約数和(自身を除く): 6863443

約数列:

[1, 5, 13, 37, 47, 65, 167, 185, 235, 481, 611, 835, 1739, 2171, 2405, 3055, 6179, 7849, 8695, 10855, 22607, 30895, 39245, 80327, 102037, 113035, 290413, 401635, 510185, 1452065, 3775369, 18876845]

約数ペア:

[(1, 18876845), (5, 3775369), (13, 1452065), (37, 510185), (47, 401635), (65, 290413), (167, 113035), (185, 102037), (235, 80327), (481, 39245), (611, 30895), (835, 22607), (1739, 10855), (2171, 8695), (2405, 7849), (3055, 6179)]