208833777725

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{641}}^1\times {\mathrm{3209}}^1$

素因数の和:4022

約数の個数: 48

約数和(自身を含む): 269852014080

約数和(自身を除く): 61018236355

約数列:

[1, 5, 25, 31, 131, 155, 641, 655, 775, 3205, 3209, 3275, 4061, 16025, 16045, 19871, 20305, 80225, 83971, 99355, 99479, 101525, 419855, 420379, 496775, 497395, 2056969, 2099275, 2101895, 2486975, 2603101, 10284845, 10509475, 13015505, 13031749, 51424225, 63766039, 65077525, 65158745, 269462939, 318830195, 325793725, 1347314695, 1594150975, 6736573475, 8353351109, 41766755545, 208833777725]

約数ペア:

[(1, 208833777725), (5, 41766755545), (25, 8353351109), (31, 6736573475), (131, 1594150975), (155, 1347314695), (641, 325793725), (655, 318830195), (775, 269462939), (3205, 65158745), (3209, 65077525), (3275, 63766039), (4061, 51424225), (16025, 13031749), (16045, 13015505), (19871, 10509475), (20305, 10284845), (80225, 2603101), (83971, 2486975), (99355, 2101895), (99479, 2099275), (101525, 2056969), (419855, 497395), (420379, 496775)]