79779100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 184016000

約数和(自身を除く): 104236900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 199, 211, 380, 398, 422, 475, 796, 844, 950, 995, 1055, 1900, 1990, 2110, 3781, 3980, 4009, 4220, 4975, 5275, 7562, 8018, 9950, 10550, 15124, 16036, 18905, 19900, 20045, 21100, 37810, 40090, 41989, 75620, 80180, 83978, 94525, 100225, 167956, 189050, 200450, 209945, 378100, 400900, 419890, 797791, 839780, 1049725, 1595582, 2099450, 3191164, 3988955, 4198900, 7977910, 15955820, 19944775, 39889550, 79779100]

約数ペア:

[(1, 79779100), (2, 39889550), (4, 19944775), (5, 15955820), (10, 7977910), (19, 4198900), (20, 3988955), (25, 3191164), (38, 2099450), (50, 1595582), (76, 1049725), (95, 839780), (100, 797791), (190, 419890), (199, 400900), (211, 378100), (380, 209945), (398, 200450), (422, 189050), (475, 167956), (796, 100225), (844, 94525), (950, 83978), (995, 80180), (1055, 75620), (1900, 41989), (1990, 40090), (2110, 37810), (3781, 21100), (3980, 20045), (4009, 19900), (4220, 18905), (4975, 16036), (5275, 15124), (7562, 10550), (8018, 9950)]