20139932440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1\times {\mathrm{42407}}^1$

素因数の和:42832

約数の個数: 64

約数和(自身を含む): 46899855360

約数和(自身を除く): 26759922920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 383, 620, 766, 1240, 1532, 1915, 3064, 3830, 7660, 11873, 15320, 23746, 42407, 47492, 59365, 84814, 94984, 118730, 169628, 212035, 237460, 339256, 424070, 474920, 848140, 1314617, 1696280, 2629234, 5258468, 6573085, 10516936, 13146170, 16241881, 26292340, 32483762, 52584680, 64967524, 81209405, 129935048, 162418810, 324837620, 503498311, 649675240, 1006996622, 2013993244, 2517491555, 4027986488, 5034983110, 10069966220, 20139932440]

約数ペア:

[(1, 20139932440), (2, 10069966220), (4, 5034983110), (5, 4027986488), (8, 2517491555), (10, 2013993244), (20, 1006996622), (31, 649675240), (40, 503498311), (62, 324837620), (124, 162418810), (155, 129935048), (248, 81209405), (310, 64967524), (383, 52584680), (620, 32483762), (766, 26292340), (1240, 16241881), (1532, 13146170), (1915, 10516936), (3064, 6573085), (3830, 5258468), (7660, 2629234), (11873, 1696280), (15320, 1314617), (23746, 848140), (42407, 474920), (47492, 424070), (59365, 339256), (84814, 237460), (94984, 212035), (118730, 169628)]