91780280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1901}}^1$

素因数の和:2000

約数の個数: 64

約数和(自身を含む): 221849280

約数和(自身を除く): 130069000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 680, 710, 1207, 1420, 1901, 2414, 2840, 3802, 4828, 6035, 7604, 9505, 9656, 12070, 15208, 19010, 24140, 32317, 38020, 48280, 64634, 76040, 129268, 134971, 161585, 258536, 269942, 323170, 539884, 646340, 674855, 1079768, 1292680, 1349710, 2294507, 2699420, 4589014, 5398840, 9178028, 11472535, 18356056, 22945070, 45890140, 91780280]

約数ペア:

[(1, 91780280), (2, 45890140), (4, 22945070), (5, 18356056), (8, 11472535), (10, 9178028), (17, 5398840), (20, 4589014), (34, 2699420), (40, 2294507), (68, 1349710), (71, 1292680), (85, 1079768), (136, 674855), (142, 646340), (170, 539884), (284, 323170), (340, 269942), (355, 258536), (568, 161585), (680, 134971), (710, 129268), (1207, 76040), (1420, 64634), (1901, 48280), (2414, 38020), (2840, 32317), (3802, 24140), (4828, 19010), (6035, 15208), (7604, 12070), (9505, 9656)]