40816420

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{8539}}^1$

素因数の和:8787

約数の個数: 24

約数和(自身を含む): 86083200

約数和(自身を除く): 45266780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 8539, 17078, 34156, 42695, 85390, 170780, 2040821, 4081642, 8163284, 10204105, 20408210, 40816420]

約数ペア:

[(1, 40816420), (2, 20408210), (4, 10204105), (5, 8163284), (10, 4081642), (20, 2040821), (239, 170780), (478, 85390), (956, 42695), (1195, 34156), (2390, 17078), (4780, 8539)]