31001680

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2141}}^1$

素因数の和:2335

約数の個数: 40

約数和(自身を含む): 72510984

約数和(自身を除く): 41509304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2141, 2896, 3620, 4282, 7240, 8564, 10705, 14480, 17128, 21410, 34256, 42820, 85640, 171280, 387521, 775042, 1550084, 1937605, 3100168, 3875210, 6200336, 7750420, 15500840, 31001680]

約数ペア:

[(1, 31001680), (2, 15500840), (4, 7750420), (5, 6200336), (8, 3875210), (10, 3100168), (16, 1937605), (20, 1550084), (40, 775042), (80, 387521), (181, 171280), (362, 85640), (724, 42820), (905, 34256), (1448, 21410), (1810, 17128), (2141, 14480), (2896, 10705), (3620, 8564), (4282, 7240)]