1280821668

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{491867}}^1$

素因数の和:491912

約数の個数: 48

約数和(自身を含む): 3525709824

約数和(自身を除く): 2244888156

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 372, 434, 651, 868, 1302, 2604, 491867, 983734, 1475601, 1967468, 2951202, 3443069, 5902404, 6886138, 10329207, 13772276, 15247877, 20658414, 30495754, 41316828, 45743631, 60991508, 91487262, 106735139, 182974524, 213470278, 320205417, 426940556, 640410834, 1280821668]

約数ペア:

[(1, 1280821668), (2, 640410834), (3, 426940556), (4, 320205417), (6, 213470278), (7, 182974524), (12, 106735139), (14, 91487262), (21, 60991508), (28, 45743631), (31, 41316828), (42, 30495754), (62, 20658414), (84, 15247877), (93, 13772276), (124, 10329207), (186, 6886138), (217, 5902404), (372, 3443069), (434, 2951202), (651, 1967468), (868, 1475601), (1302, 983734), (2604, 491867)]