74987720

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{13487}}^1$

素因数の和:13637

約数の個数: 32

約数和(自身を含む): 169948800

約数和(自身を除く): 94961080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 13487, 26974, 53948, 67435, 107896, 134870, 269740, 539480, 1874693, 3749386, 7498772, 9373465, 14997544, 18746930, 37493860, 74987720]

約数ペア:

[(1, 74987720), (2, 37493860), (4, 18746930), (5, 14997544), (8, 9373465), (10, 7498772), (20, 3749386), (40, 1874693), (139, 539480), (278, 269740), (556, 134870), (695, 107896), (1112, 67435), (1390, 53948), (2780, 26974), (5560, 13487)]