21079920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87833}}^1$

素因数の和:87849

約数の個数: 40

約数和(自身を含む): 65348496

約数和(自身を除く): 44268576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87833, 175666, 263499, 351332, 439165, 526998, 702664, 878330, 1053996, 1317495, 1405328, 1756660, 2107992, 2634990, 3513320, 4215984, 5269980, 7026640, 10539960, 21079920]

約数ペア:

[(1, 21079920), (2, 10539960), (3, 7026640), (4, 5269980), (5, 4215984), (6, 3513320), (8, 2634990), (10, 2107992), (12, 1756660), (15, 1405328), (16, 1317495), (20, 1053996), (24, 878330), (30, 702664), (40, 526998), (48, 439165), (60, 351332), (80, 263499), (120, 175666), (240, 87833)]