165565420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{2753}}^1$

素因数の和:2890

約数の個数: 48

約数和(自身を含む): 362734848

約数和(自身を除く): 197169428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 97, 124, 155, 194, 310, 388, 485, 620, 970, 1940, 2753, 3007, 5506, 6014, 11012, 12028, 13765, 15035, 27530, 30070, 55060, 60140, 85343, 170686, 267041, 341372, 426715, 534082, 853430, 1068164, 1335205, 1706860, 2670410, 5340820, 8278271, 16556542, 33113084, 41391355, 82782710, 165565420]

約数ペア:

[(1, 165565420), (2, 82782710), (4, 41391355), (5, 33113084), (10, 16556542), (20, 8278271), (31, 5340820), (62, 2670410), (97, 1706860), (124, 1335205), (155, 1068164), (194, 853430), (310, 534082), (388, 426715), (485, 341372), (620, 267041), (970, 170686), (1940, 85343), (2753, 60140), (3007, 55060), (5506, 30070), (6014, 27530), (11012, 15035), (12028, 13765)]