208065208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:584

約数の個数: 64

約数和(自身を含む): 435708000

約数和(自身を除く): 227642792

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 139, 148, 278, 296, 389, 481, 556, 778, 962, 1112, 1556, 1807, 1924, 3112, 3614, 3848, 5057, 5143, 7228, 10114, 10286, 14393, 14456, 20228, 20572, 28786, 40456, 41144, 54071, 57572, 66859, 108142, 115144, 133718, 187109, 216284, 267436, 374218, 432568, 534872, 702923, 748436, 1405846, 1496872, 2000627, 2811692, 4001254, 5623384, 8002508, 16005016, 26008151, 52016302, 104032604, 208065208]

約数ペア:

[(1, 208065208), (2, 104032604), (4, 52016302), (8, 26008151), (13, 16005016), (26, 8002508), (37, 5623384), (52, 4001254), (74, 2811692), (104, 2000627), (139, 1496872), (148, 1405846), (278, 748436), (296, 702923), (389, 534872), (481, 432568), (556, 374218), (778, 267436), (962, 216284), (1112, 187109), (1556, 133718), (1807, 115144), (1924, 108142), (3112, 66859), (3614, 57572), (3848, 54071), (5057, 41144), (5143, 40456), (7228, 28786), (10114, 20572), (10286, 20228), (14393, 14456)]