80205420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{13781}}^1$

素因数の和:13890

約数の個数: 48

約数和(自身を含む): 226906848

約数和(自身を除く): 146701428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 5820, 13781, 27562, 41343, 55124, 68905, 82686, 137810, 165372, 206715, 275620, 413430, 826860, 1336757, 2673514, 4010271, 5347028, 6683785, 8020542, 13367570, 16041084, 20051355, 26735140, 40102710, 80205420]

約数ペア:

[(1, 80205420), (2, 40102710), (3, 26735140), (4, 20051355), (5, 16041084), (6, 13367570), (10, 8020542), (12, 6683785), (15, 5347028), (20, 4010271), (30, 2673514), (60, 1336757), (97, 826860), (194, 413430), (291, 275620), (388, 206715), (485, 165372), (582, 137810), (970, 82686), (1164, 68905), (1455, 55124), (1940, 41343), (2910, 27562), (5820, 13781)]