15204920

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{821}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 34326720

約数和(自身を除く): 19121800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 821, 926, 1642, 1852, 2315, 3284, 3704, 4105, 4630, 6568, 8210, 9260, 16420, 18520, 32840, 380123, 760246, 1520492, 1900615, 3040984, 3801230, 7602460, 15204920]

約数ペア:

[(1, 15204920), (2, 7602460), (4, 3801230), (5, 3040984), (8, 1900615), (10, 1520492), (20, 760246), (40, 380123), (463, 32840), (821, 18520), (926, 16420), (1642, 9260), (1852, 8210), (2315, 6568), (3284, 4630), (3704, 4105)]