387508220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{42961}}^1$

素因数の和:43022

約数の個数: 48

約数和(自身を含む): 909419616

約数和(自身を除く): 521911396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 42961, 85922, 171844, 214805, 429610, 472571, 859220, 945142, 1761401, 1890284, 2362855, 3522802, 4725710, 7045604, 8807005, 9451420, 17614010, 19375411, 35228020, 38750822, 77501644, 96877055, 193754110, 387508220]

約数ペア:

[(1, 387508220), (2, 193754110), (4, 96877055), (5, 77501644), (10, 38750822), (11, 35228020), (20, 19375411), (22, 17614010), (41, 9451420), (44, 8807005), (55, 7045604), (82, 4725710), (110, 3522802), (164, 2362855), (205, 1890284), (220, 1761401), (410, 945142), (451, 859220), (820, 472571), (902, 429610), (1804, 214805), (2255, 171844), (4510, 85922), (9020, 42961)]