15172720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2131}}^1$

素因数の和:2233

約数の個数: 40

約数和(自身を含む): 35689680

約数和(自身を除く): 20516960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 2131, 3560, 4262, 7120, 8524, 10655, 17048, 21310, 34096, 42620, 85240, 170480, 189659, 379318, 758636, 948295, 1517272, 1896590, 3034544, 3793180, 7586360, 15172720]

約数ペア:

[(1, 15172720), (2, 7586360), (4, 3793180), (5, 3034544), (8, 1896590), (10, 1517272), (16, 948295), (20, 758636), (40, 379318), (80, 189659), (89, 170480), (178, 85240), (356, 42620), (445, 34096), (712, 21310), (890, 17048), (1424, 10655), (1780, 8524), (2131, 7120), (3560, 4262)]