123435920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19531}}^1$

素因数の和:19623

約数の個数: 40

約数和(自身を含む): 290636160

約数和(自身を除く): 167200240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 19531, 39062, 78124, 97655, 156248, 195310, 312496, 390620, 781240, 1542949, 1562480, 3085898, 6171796, 7714745, 12343592, 15429490, 24687184, 30858980, 61717960, 123435920]

約数ペア:

[(1, 123435920), (2, 61717960), (4, 30858980), (5, 24687184), (8, 15429490), (10, 12343592), (16, 7714745), (20, 6171796), (40, 3085898), (79, 1562480), (80, 1542949), (158, 781240), (316, 390620), (395, 312496), (632, 195310), (790, 156248), (1264, 97655), (1580, 78124), (3160, 39062), (6320, 19531)]