827781968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{209459}}^1$

素因数の和:209499

約数の個数: 40

約数和(自身を含む): 1818112800

約数和(自身を除く): 990330832

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 209459, 418918, 837836, 1675672, 2722967, 3351344, 3979721, 5445934, 7959442, 10891868, 15918884, 21783736, 31837768, 43567472, 51736373, 63675536, 103472746, 206945492, 413890984, 827781968]

約数ペア:

[(1, 827781968), (2, 413890984), (4, 206945492), (8, 103472746), (13, 63675536), (16, 51736373), (19, 43567472), (26, 31837768), (38, 21783736), (52, 15918884), (76, 10891868), (104, 7959442), (152, 5445934), (208, 3979721), (247, 3351344), (304, 2722967), (494, 1675672), (988, 837836), (1976, 418918), (3952, 209459)]