391650908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{971}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 764225280

約数和(自身を除く): 372574372

約数列:

[1, 2, 4, 11, 22, 44, 89, 103, 178, 206, 356, 412, 971, 979, 1133, 1942, 1958, 2266, 3884, 3916, 4532, 9167, 10681, 18334, 21362, 36668, 42724, 86419, 100013, 100837, 172838, 200026, 201674, 345676, 400052, 403348, 950609, 1100143, 1901218, 2200286, 3802436, 4400572, 8901157, 17802314, 35604628, 97912727, 195825454, 391650908]

約数ペア:

[(1, 391650908), (2, 195825454), (4, 97912727), (11, 35604628), (22, 17802314), (44, 8901157), (89, 4400572), (103, 3802436), (178, 2200286), (206, 1901218), (356, 1100143), (412, 950609), (971, 403348), (979, 400052), (1133, 345676), (1942, 201674), (1958, 200026), (2266, 172838), (3884, 100837), (3916, 100013), (4532, 86419), (9167, 42724), (10681, 36668), (18334, 21362)]