81469700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2161}}^1$

素因数の和:2217

約数の個数: 72

約数和(自身を含む): 197044680

約数和(自身を除く): 115574980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 65, 100, 116, 130, 145, 260, 290, 325, 377, 580, 650, 725, 754, 1300, 1450, 1508, 1885, 2161, 2900, 3770, 4322, 7540, 8644, 9425, 10805, 18850, 21610, 28093, 37700, 43220, 54025, 56186, 62669, 108050, 112372, 125338, 140465, 216100, 250676, 280930, 313345, 561860, 626690, 702325, 814697, 1253380, 1404650, 1566725, 1629394, 2809300, 3133450, 3258788, 4073485, 6266900, 8146970, 16293940, 20367425, 40734850, 81469700]

約数ペア:

[(1, 81469700), (2, 40734850), (4, 20367425), (5, 16293940), (10, 8146970), (13, 6266900), (20, 4073485), (25, 3258788), (26, 3133450), (29, 2809300), (50, 1629394), (52, 1566725), (58, 1404650), (65, 1253380), (100, 814697), (116, 702325), (130, 626690), (145, 561860), (260, 313345), (290, 280930), (325, 250676), (377, 216100), (580, 140465), (650, 125338), (725, 112372), (754, 108050), (1300, 62669), (1450, 56186), (1508, 54025), (1885, 43220), (2161, 37700), (2900, 28093), (3770, 21610), (4322, 18850), (7540, 10805), (8644, 9425)]