280341680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113041}}^1$

素因数の和:113085

約数の個数: 40

約数和(自身を含む): 672825984

約数和(自身を除く): 392484304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 113041, 226082, 452164, 565205, 904328, 1130410, 1808656, 2260820, 3504271, 4521640, 7008542, 9043280, 14017084, 17521355, 28034168, 35042710, 56068336, 70085420, 140170840, 280341680]

約数ペア:

[(1, 280341680), (2, 140170840), (4, 70085420), (5, 56068336), (8, 35042710), (10, 28034168), (16, 17521355), (20, 14017084), (31, 9043280), (40, 7008542), (62, 4521640), (80, 3504271), (124, 2260820), (155, 1808656), (248, 1130410), (310, 904328), (496, 565205), (620, 452164), (1240, 226082), (2480, 113041)]