82686920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66683}}^1$

素因数の和:66725

約数の個数: 32

約数和(自身を含む): 192049920

約数和(自身を除く): 109363000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 66683, 133366, 266732, 333415, 533464, 666830, 1333660, 2067173, 2667320, 4134346, 8268692, 10335865, 16537384, 20671730, 41343460, 82686920]

約数ペア:

[(1, 82686920), (2, 41343460), (4, 20671730), (5, 16537384), (8, 10335865), (10, 8268692), (20, 4134346), (31, 2667320), (40, 2067173), (62, 1333660), (124, 666830), (155, 533464), (248, 333415), (310, 266732), (620, 133366), (1240, 66683)]