78322840

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4651}}^1$

素因数の和:5083

約数の個数: 32

約数和(自身を含む): 176682960

約数和(自身を除く): 98360120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 4651, 8420, 9302, 16840, 18604, 23255, 37208, 46510, 93020, 186040, 1958071, 3916142, 7832284, 9790355, 15664568, 19580710, 39161420, 78322840]

約数ペア:

[(1, 78322840), (2, 39161420), (4, 19580710), (5, 15664568), (8, 9790355), (10, 7832284), (20, 3916142), (40, 1958071), (421, 186040), (842, 93020), (1684, 46510), (2105, 37208), (3368, 23255), (4210, 18604), (4651, 16840), (8420, 9302)]