199921982

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{743}}^1$

素因数の和:968

約数の個数: 32

約数和(自身を含む): 329978880

約数和(自身を除く): 130056898

約数列:

[1, 2, 13, 26, 79, 131, 158, 262, 743, 1027, 1486, 1703, 2054, 3406, 9659, 10349, 19318, 20698, 58697, 97333, 117394, 134537, 194666, 269074, 763061, 1265329, 1526122, 2530658, 7689307, 15378614, 99960991, 199921982]

約数ペア:

[(1, 199921982), (2, 99960991), (13, 15378614), (26, 7689307), (79, 2530658), (131, 1526122), (158, 1265329), (262, 763061), (743, 269074), (1027, 194666), (1486, 134537), (1703, 117394), (2054, 97333), (3406, 58697), (9659, 20698), (10349, 19318)]