20347440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{569}}^1$

素因数の和:734

約数の個数: 80

約数和(自身を含む): 63612000

約数和(自身を除く): 43264560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 149, 240, 298, 447, 569, 596, 745, 894, 1138, 1192, 1490, 1707, 1788, 2235, 2276, 2384, 2845, 2980, 3414, 3576, 4470, 4552, 5690, 5960, 6828, 7152, 8535, 8940, 9104, 11380, 11920, 13656, 17070, 17880, 22760, 27312, 34140, 35760, 45520, 68280, 84781, 136560, 169562, 254343, 339124, 423905, 508686, 678248, 847810, 1017372, 1271715, 1356496, 1695620, 2034744, 2543430, 3391240, 4069488, 5086860, 6782480, 10173720, 20347440]

約数ペア:

[(1, 20347440), (2, 10173720), (3, 6782480), (4, 5086860), (5, 4069488), (6, 3391240), (8, 2543430), (10, 2034744), (12, 1695620), (15, 1356496), (16, 1271715), (20, 1017372), (24, 847810), (30, 678248), (40, 508686), (48, 423905), (60, 339124), (80, 254343), (120, 169562), (149, 136560), (240, 84781), (298, 68280), (447, 45520), (569, 35760), (596, 34140), (745, 27312), (894, 22760), (1138, 17880), (1192, 17070), (1490, 13656), (1707, 11920), (1788, 11380), (2235, 9104), (2276, 8940), (2384, 8535), (2845, 7152), (2980, 6828), (3414, 5960), (3576, 5690), (4470, 4552)]