399568208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{11503}}^1$

素因数の和:11691

約数の個数: 40

約数和(自身を含む): 838779648

約数和(自身を除く): 439211440

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 167, 208, 334, 668, 1336, 2171, 2672, 4342, 8684, 11503, 17368, 23006, 34736, 46012, 92024, 149539, 184048, 299078, 598156, 1196312, 1921001, 2392624, 3842002, 7684004, 15368008, 24973013, 30736016, 49946026, 99892052, 199784104, 399568208]

約数ペア:

[(1, 399568208), (2, 199784104), (4, 99892052), (8, 49946026), (13, 30736016), (16, 24973013), (26, 15368008), (52, 7684004), (104, 3842002), (167, 2392624), (208, 1921001), (334, 1196312), (668, 598156), (1336, 299078), (2171, 184048), (2672, 149539), (4342, 92024), (8684, 46012), (11503, 34736), (17368, 23006)]