15380840

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1213}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 34744680

約数和(自身を除く): 19363840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1213, 1268, 1585, 2426, 2536, 3170, 4852, 6065, 6340, 9704, 12130, 12680, 24260, 48520, 384521, 769042, 1538084, 1922605, 3076168, 3845210, 7690420, 15380840]

約数ペア:

[(1, 15380840), (2, 7690420), (4, 3845210), (5, 3076168), (8, 1922605), (10, 1538084), (20, 769042), (40, 384521), (317, 48520), (634, 24260), (1213, 12680), (1268, 12130), (1585, 9704), (2426, 6340), (2536, 6065), (3170, 4852)]