215243390

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{1091}}^1$

素因数の和:1388

約数の個数: 32

約数和(自身を含む): 393513120

約数和(自身を除く): 178269730

約数列:

[1, 2, 5, 10, 109, 181, 218, 362, 545, 905, 1090, 1091, 1810, 2182, 5455, 10910, 19729, 39458, 98645, 118919, 197290, 197471, 237838, 394942, 594595, 987355, 1189190, 1974710, 21524339, 43048678, 107621695, 215243390]

約数ペア:

[(1, 215243390), (2, 107621695), (5, 43048678), (10, 21524339), (109, 1974710), (181, 1189190), (218, 987355), (362, 594595), (545, 394942), (905, 237838), (1090, 197471), (1091, 197290), (1810, 118919), (2182, 98645), (5455, 39458), (10910, 19729)]