77420950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:493

約数の個数: 48

約数和(自身を含む): 149990400

約数和(自身を除く): 72569450

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 199, 251, 310, 398, 502, 775, 995, 1255, 1550, 1990, 2510, 4975, 6169, 6275, 7781, 9950, 12338, 12550, 15562, 30845, 38905, 49949, 61690, 77810, 99898, 154225, 194525, 249745, 308450, 389050, 499490, 1248725, 1548419, 2497450, 3096838, 7742095, 15484190, 38710475, 77420950]

約数ペア:

[(1, 77420950), (2, 38710475), (5, 15484190), (10, 7742095), (25, 3096838), (31, 2497450), (50, 1548419), (62, 1248725), (155, 499490), (199, 389050), (251, 308450), (310, 249745), (398, 194525), (502, 154225), (775, 99898), (995, 77810), (1255, 61690), (1550, 49949), (1990, 38905), (2510, 30845), (4975, 15562), (6169, 12550), (6275, 12338), (7781, 9950)]