201991419620

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{593}}^1\times {\mathrm{34687}}^1$

素因数の和:35780

約数の個数: 48

約数和(自身を含む): 425774942208

約数和(自身を除く): 223783522588

約数列:

[1, 2, 4, 5, 10, 20, 491, 593, 982, 1186, 1964, 2372, 2455, 2965, 4910, 5930, 9820, 11860, 34687, 69374, 138748, 173435, 291163, 346870, 582326, 693740, 1164652, 1455815, 2911630, 5823260, 17031317, 20569391, 34062634, 41138782, 68125268, 82277564, 85156585, 102846955, 170313170, 205693910, 340626340, 411387820, 10099570981, 20199141962, 40398283924, 50497854905, 100995709810, 201991419620]

約数ペア:

[(1, 201991419620), (2, 100995709810), (4, 50497854905), (5, 40398283924), (10, 20199141962), (20, 10099570981), (491, 411387820), (593, 340626340), (982, 205693910), (1186, 170313170), (1964, 102846955), (2372, 85156585), (2455, 82277564), (2965, 68125268), (4910, 41138782), (5930, 34062634), (9820, 20569391), (11860, 17031317), (34687, 5823260), (69374, 2911630), (138748, 1455815), (173435, 1164652), (291163, 693740), (346870, 582326)]