20199963920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8706881}}^1$

素因数の和:8706923

約数の個数: 40

約数和(自身を含む): 48584401560

約数和(自身を除く): 28384437640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8706881, 17413762, 34827524, 43534405, 69655048, 87068810, 139310096, 174137620, 252499549, 348275240, 504999098, 696550480, 1009998196, 1262497745, 2019996392, 2524995490, 4039992784, 5049990980, 10099981960, 20199963920]

約数ペア:

[(1, 20199963920), (2, 10099981960), (4, 5049990980), (5, 4039992784), (8, 2524995490), (10, 2019996392), (16, 1262497745), (20, 1009998196), (29, 696550480), (40, 504999098), (58, 348275240), (80, 252499549), (116, 174137620), (145, 139310096), (232, 87068810), (290, 69655048), (464, 43534405), (580, 34827524), (1160, 17413762), (2320, 8706881)]