78340280

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2017}}^1$

素因数の和:2999

約数の個数: 32

約数和(自身を含む): 176534640

約数和(自身を除く): 98194360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 2017, 3884, 4034, 4855, 7768, 8068, 9710, 10085, 16136, 19420, 20170, 38840, 40340, 80680, 1958507, 3917014, 7834028, 9792535, 15668056, 19585070, 39170140, 78340280]

約数ペア:

[(1, 78340280), (2, 39170140), (4, 19585070), (5, 15668056), (8, 9792535), (10, 7834028), (20, 3917014), (40, 1958507), (971, 80680), (1942, 40340), (2017, 38840), (3884, 20170), (4034, 19420), (4855, 16136), (7768, 10085), (8068, 9710)]