149750420

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{11681}}^1$

素因数の和:12331

約数の個数: 24

約数和(自身を含む): 314993448

約数和(自身を除く): 165243028

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 11681, 12820, 23362, 46724, 58405, 116810, 233620, 7487521, 14975042, 29950084, 37437605, 74875210, 149750420]

約数ペア:

[(1, 149750420), (2, 74875210), (4, 37437605), (5, 29950084), (10, 14975042), (20, 7487521), (641, 233620), (1282, 116810), (2564, 58405), (3205, 46724), (6410, 23362), (11681, 12820)]