19980816

素因数分解:

$2^4\times 3^1\times {\mathrm{547}}^1\times {\mathrm{761}}^1$

素因数の和:1319

約数の個数: 40

約数和(自身を含む): 51779424

約数和(自身を除く): 31798608

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 547, 761, 1094, 1522, 1641, 2188, 2283, 3044, 3282, 4376, 4566, 6088, 6564, 8752, 9132, 12176, 13128, 18264, 26256, 36528, 416267, 832534, 1248801, 1665068, 2497602, 3330136, 4995204, 6660272, 9990408, 19980816]

約数ペア:

[(1, 19980816), (2, 9990408), (3, 6660272), (4, 4995204), (6, 3330136), (8, 2497602), (12, 1665068), (16, 1248801), (24, 832534), (48, 416267), (547, 36528), (761, 26256), (1094, 18264), (1522, 13128), (1641, 12176), (2188, 9132), (2283, 8752), (3044, 6564), (3282, 6088), (4376, 4566)]