20484780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1531}}^1$

素因数の和:1766

約数の個数: 48

約数和(自身を含む): 57652224

約数和(自身を除く): 37167444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 223, 446, 669, 892, 1115, 1338, 1531, 2230, 2676, 3062, 3345, 4460, 4593, 6124, 6690, 7655, 9186, 13380, 15310, 18372, 22965, 30620, 45930, 91860, 341413, 682826, 1024239, 1365652, 1707065, 2048478, 3414130, 4096956, 5121195, 6828260, 10242390, 20484780]

約数ペア:

[(1, 20484780), (2, 10242390), (3, 6828260), (4, 5121195), (5, 4096956), (6, 3414130), (10, 2048478), (12, 1707065), (15, 1365652), (20, 1024239), (30, 682826), (60, 341413), (223, 91860), (446, 45930), (669, 30620), (892, 22965), (1115, 18372), (1338, 15310), (1531, 13380), (2230, 9186), (2676, 7655), (3062, 6690), (3345, 6124), (4460, 4593)]