39968890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5801}}^1$

素因数の和:5874

約数の個数: 32

約数和(自身を含む): 78953616

約数和(自身を除く): 38984726

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 5801, 6890, 11602, 29005, 58010, 75413, 150826, 307453, 377065, 614906, 754130, 1537265, 3074530, 3996889, 7993778, 19984445, 39968890]

約数ペア:

[(1, 39968890), (2, 19984445), (5, 7993778), (10, 3996889), (13, 3074530), (26, 1537265), (53, 754130), (65, 614906), (106, 377065), (130, 307453), (265, 150826), (530, 75413), (689, 58010), (1378, 29005), (3445, 11602), (5801, 6890)]