81952180

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 176400000

約数和(自身を除く): 94447820

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 199, 236, 295, 349, 398, 590, 698, 796, 995, 1180, 1396, 1745, 1990, 3490, 3980, 6980, 11741, 20591, 23482, 41182, 46964, 58705, 69451, 82364, 102955, 117410, 138902, 205910, 234820, 277804, 347255, 411820, 694510, 1389020, 4097609, 8195218, 16390436, 20488045, 40976090, 81952180]

約数ペア:

[(1, 81952180), (2, 40976090), (4, 20488045), (5, 16390436), (10, 8195218), (20, 4097609), (59, 1389020), (118, 694510), (199, 411820), (236, 347255), (295, 277804), (349, 234820), (398, 205910), (590, 138902), (698, 117410), (796, 102955), (995, 82364), (1180, 69451), (1396, 58705), (1745, 46964), (1990, 41182), (3490, 23482), (3980, 20591), (6980, 11741)]