20403835216

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{919423}}^1$

素因数の和:919523

約数の個数: 40

約数和(自身を含む): 42183173120

約数和(自身を除く): 21779337904

約数列:

[1, 2, 4, 8, 16, 19, 38, 73, 76, 146, 152, 292, 304, 584, 1168, 1387, 2774, 5548, 11096, 22192, 919423, 1838846, 3677692, 7355384, 14710768, 17469037, 34938074, 67117879, 69876148, 134235758, 139752296, 268471516, 279504592, 536943032, 1073886064, 1275239701, 2550479402, 5100958804, 10201917608, 20403835216]

約数ペア:

[(1, 20403835216), (2, 10201917608), (4, 5100958804), (8, 2550479402), (16, 1275239701), (19, 1073886064), (38, 536943032), (73, 279504592), (76, 268471516), (146, 139752296), (152, 134235758), (292, 69876148), (304, 67117879), (584, 34938074), (1168, 17469037), (1387, 14710768), (2774, 7355384), (5548, 3677692), (11096, 1838846), (22192, 919423)]