15639420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{941}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 43995168

約数和(自身を除く): 28355748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 277, 554, 831, 941, 1108, 1385, 1662, 1882, 2770, 2823, 3324, 3764, 4155, 4705, 5540, 5646, 8310, 9410, 11292, 14115, 16620, 18820, 28230, 56460, 260657, 521314, 781971, 1042628, 1303285, 1563942, 2606570, 3127884, 3909855, 5213140, 7819710, 15639420]

約数ペア:

[(1, 15639420), (2, 7819710), (3, 5213140), (4, 3909855), (5, 3127884), (6, 2606570), (10, 1563942), (12, 1303285), (15, 1042628), (20, 781971), (30, 521314), (60, 260657), (277, 56460), (554, 28230), (831, 18820), (941, 16620), (1108, 14115), (1385, 11292), (1662, 9410), (1882, 8310), (2770, 5646), (2823, 5540), (3324, 4705), (3764, 4155)]