12901640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18973}}^1$

素因数の和:19001

約数の個数: 32

約数和(自身を含む): 30737880

約数和(自身を除く): 17836240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 18973, 37946, 75892, 94865, 151784, 189730, 322541, 379460, 645082, 758920, 1290164, 1612705, 2580328, 3225410, 6450820, 12901640]

約数ペア:

[(1, 12901640), (2, 6450820), (4, 3225410), (5, 2580328), (8, 1612705), (10, 1290164), (17, 758920), (20, 645082), (34, 379460), (40, 322541), (68, 189730), (85, 151784), (136, 94865), (170, 75892), (340, 37946), (680, 18973)]