19545160

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1103}}^1$

素因数の和:1557

約数の個数: 32

約数和(自身を含む): 44115840

約数和(自身を除く): 24570680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1103, 1772, 2206, 2215, 3544, 4412, 4430, 5515, 8824, 8860, 11030, 17720, 22060, 44120, 488629, 977258, 1954516, 2443145, 3909032, 4886290, 9772580, 19545160]

約数ペア:

[(1, 19545160), (2, 9772580), (4, 4886290), (5, 3909032), (8, 2443145), (10, 1954516), (20, 977258), (40, 488629), (443, 44120), (886, 22060), (1103, 17720), (1772, 11030), (2206, 8860), (2215, 8824), (3544, 5515), (4412, 4430)]