13128760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 32076000

約数和(自身を除く): 18947240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 449, 680, 731, 860, 898, 1462, 1720, 1796, 2245, 2924, 3592, 3655, 4490, 5848, 7310, 7633, 8980, 14620, 15266, 17960, 19307, 29240, 30532, 38165, 38614, 61064, 76330, 77228, 96535, 152660, 154456, 193070, 305320, 328219, 386140, 656438, 772280, 1312876, 1641095, 2625752, 3282190, 6564380, 13128760]

約数ペア:

[(1, 13128760), (2, 6564380), (4, 3282190), (5, 2625752), (8, 1641095), (10, 1312876), (17, 772280), (20, 656438), (34, 386140), (40, 328219), (43, 305320), (68, 193070), (85, 154456), (86, 152660), (136, 96535), (170, 77228), (172, 76330), (215, 61064), (340, 38614), (344, 38165), (430, 30532), (449, 29240), (680, 19307), (731, 17960), (860, 15266), (898, 14620), (1462, 8980), (1720, 7633), (1796, 7310), (2245, 5848), (2924, 4490), (3592, 3655)]