2009353960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{6491}}^1$

素因数の和:6682

約数の個数: 64

約数和(自身を含む): 4627497600

約数和(自身を除く): 2618143640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 109, 142, 218, 284, 355, 436, 545, 568, 710, 872, 1090, 1420, 2180, 2840, 4360, 6491, 7739, 12982, 15478, 25964, 30956, 32455, 38695, 51928, 61912, 64910, 77390, 129820, 154780, 259640, 309560, 460861, 707519, 921722, 1415038, 1843444, 2304305, 2830076, 3537595, 3686888, 4608610, 5660152, 7075190, 9217220, 14150380, 18434440, 28300760, 50233849, 100467698, 200935396, 251169245, 401870792, 502338490, 1004676980, 2009353960]

約数ペア:

[(1, 2009353960), (2, 1004676980), (4, 502338490), (5, 401870792), (8, 251169245), (10, 200935396), (20, 100467698), (40, 50233849), (71, 28300760), (109, 18434440), (142, 14150380), (218, 9217220), (284, 7075190), (355, 5660152), (436, 4608610), (545, 3686888), (568, 3537595), (710, 2830076), (872, 2304305), (1090, 1843444), (1420, 1415038), (2180, 921722), (2840, 707519), (4360, 460861), (6491, 309560), (7739, 259640), (12982, 154780), (15478, 129820), (25964, 77390), (30956, 64910), (32455, 61912), (38695, 51928)]