21020640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43793}}^1$

素因数の和:43811

約数の個数: 48

約数和(自身を含む): 66216528

約数和(自身を除く): 45195888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43793, 87586, 131379, 175172, 218965, 262758, 350344, 437930, 525516, 656895, 700688, 875860, 1051032, 1313790, 1401376, 1751720, 2102064, 2627580, 3503440, 4204128, 5255160, 7006880, 10510320, 21020640]

約数ペア:

[(1, 21020640), (2, 10510320), (3, 7006880), (4, 5255160), (5, 4204128), (6, 3503440), (8, 2627580), (10, 2102064), (12, 1751720), (15, 1401376), (16, 1313790), (20, 1051032), (24, 875860), (30, 700688), (32, 656895), (40, 525516), (48, 437930), (60, 350344), (80, 262758), (96, 218965), (120, 175172), (160, 131379), (240, 87586), (480, 43793)]