18616220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1291}}^1$

素因数の和:1410

約数の個数: 48

約数和(自身を含む): 45147648

約数和(自身を除く): 26531428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1291, 1442, 2060, 2582, 2884, 3605, 5164, 6455, 7210, 9037, 12910, 14420, 18074, 25820, 36148, 45185, 90370, 132973, 180740, 265946, 531892, 664865, 930811, 1329730, 1861622, 2659460, 3723244, 4654055, 9308110, 18616220]

約数ペア:

[(1, 18616220), (2, 9308110), (4, 4654055), (5, 3723244), (7, 2659460), (10, 1861622), (14, 1329730), (20, 930811), (28, 664865), (35, 531892), (70, 265946), (103, 180740), (140, 132973), (206, 90370), (412, 45185), (515, 36148), (721, 25820), (1030, 18074), (1291, 14420), (1442, 12910), (2060, 9037), (2582, 7210), (2884, 6455), (3605, 5164)]