199909816

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 398361600

約数和(自身を除く): 198451784

約数列:

[1, 2, 4, 8, 37, 74, 79, 83, 103, 148, 158, 166, 206, 296, 316, 332, 412, 632, 664, 824, 2923, 3071, 3811, 5846, 6142, 6557, 7622, 8137, 8549, 11692, 12284, 13114, 15244, 16274, 17098, 23384, 24568, 26228, 30488, 32548, 34196, 52456, 65096, 68392, 242609, 301069, 316313, 485218, 602138, 632626, 675371, 970436, 1204276, 1265252, 1350742, 1940872, 2408552, 2530504, 2701484, 5402968, 24988727, 49977454, 99954908, 199909816]

約数ペア:

[(1, 199909816), (2, 99954908), (4, 49977454), (8, 24988727), (37, 5402968), (74, 2701484), (79, 2530504), (83, 2408552), (103, 1940872), (148, 1350742), (158, 1265252), (166, 1204276), (206, 970436), (296, 675371), (316, 632626), (332, 602138), (412, 485218), (632, 316313), (664, 301069), (824, 242609), (2923, 68392), (3071, 65096), (3811, 52456), (5846, 34196), (6142, 32548), (6557, 30488), (7622, 26228), (8137, 24568), (8549, 23384), (11692, 17098), (12284, 16274), (13114, 15244)]