68907620

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{433}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 148375920

約数和(自身を除く): 79468300

約数列:

[1, 2, 4, 5, 10, 20, 73, 109, 146, 218, 292, 365, 433, 436, 545, 730, 866, 1090, 1460, 1732, 2165, 2180, 4330, 7957, 8660, 15914, 31609, 31828, 39785, 47197, 63218, 79570, 94394, 126436, 158045, 159140, 188788, 235985, 316090, 471970, 632180, 943940, 3445381, 6890762, 13781524, 17226905, 34453810, 68907620]

約数ペア:

[(1, 68907620), (2, 34453810), (4, 17226905), (5, 13781524), (10, 6890762), (20, 3445381), (73, 943940), (109, 632180), (146, 471970), (218, 316090), (292, 235985), (365, 188788), (433, 159140), (436, 158045), (545, 126436), (730, 94394), (866, 79570), (1090, 63218), (1460, 47197), (1732, 39785), (2165, 31828), (2180, 31609), (4330, 15914), (7957, 8660)]