20177289212

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{71837}}^1$

素因数の和:71978

約数の個数: 48

約数和(自身を含む): 38233907712

約数和(自身を除く): 18056618500

約数列:

[1, 2, 4, 23, 43, 46, 71, 86, 92, 142, 172, 284, 989, 1633, 1978, 3053, 3266, 3956, 6106, 6532, 12212, 70219, 71837, 140438, 143674, 280876, 287348, 1652251, 3088991, 3304502, 5100427, 6177982, 6609004, 10200854, 12355964, 20401708, 71046793, 117309821, 142093586, 219318361, 234619642, 284187172, 438636722, 469239284, 877273444, 5044322303, 10088644606, 20177289212]

約数ペア:

[(1, 20177289212), (2, 10088644606), (4, 5044322303), (23, 877273444), (43, 469239284), (46, 438636722), (71, 284187172), (86, 234619642), (92, 219318361), (142, 142093586), (172, 117309821), (284, 71046793), (989, 20401708), (1633, 12355964), (1978, 10200854), (3053, 6609004), (3266, 6177982), (3956, 5100427), (6106, 3304502), (6532, 3088991), (12212, 1652251), (70219, 287348), (71837, 280876), (140438, 143674)]