19845720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55127}}^1$

素因数の和:55144

約数の個数: 48

約数和(自身を含む): 64499760

約数和(自身を除く): 44654040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55127, 110254, 165381, 220508, 275635, 330762, 441016, 496143, 551270, 661524, 826905, 992286, 1102540, 1323048, 1653810, 1984572, 2205080, 2480715, 3307620, 3969144, 4961430, 6615240, 9922860, 19845720]

約数ペア:

[(1, 19845720), (2, 9922860), (3, 6615240), (4, 4961430), (5, 3969144), (6, 3307620), (8, 2480715), (9, 2205080), (10, 1984572), (12, 1653810), (15, 1323048), (18, 1102540), (20, 992286), (24, 826905), (30, 661524), (36, 551270), (40, 496143), (45, 441016), (60, 330762), (72, 275635), (90, 220508), (120, 165381), (180, 110254), (360, 55127)]