20398104

素因数分解:

$2^3\times 3^2\times {\mathrm{491}}^1\times {\mathrm{577}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 55453320

約数和(自身を除く): 35055216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 491, 577, 982, 1154, 1473, 1731, 1964, 2308, 2946, 3462, 3928, 4419, 4616, 5193, 5892, 6924, 8838, 10386, 11784, 13848, 17676, 20772, 35352, 41544, 283307, 566614, 849921, 1133228, 1699842, 2266456, 2549763, 3399684, 5099526, 6799368, 10199052, 20398104]

約数ペア:

[(1, 20398104), (2, 10199052), (3, 6799368), (4, 5099526), (6, 3399684), (8, 2549763), (9, 2266456), (12, 1699842), (18, 1133228), (24, 849921), (36, 566614), (72, 283307), (491, 41544), (577, 35352), (982, 20772), (1154, 17676), (1473, 13848), (1731, 11784), (1964, 10386), (2308, 8838), (2946, 6924), (3462, 5892), (3928, 5193), (4419, 4616)]