168807940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{281}}^1\times {\mathrm{613}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 414516312

約数和(自身を除く): 245708372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 281, 490, 562, 613, 980, 1124, 1226, 1405, 1967, 2452, 2810, 3065, 3934, 4291, 5620, 6130, 7868, 8582, 9835, 12260, 13769, 17164, 19670, 21455, 27538, 30037, 39340, 42910, 55076, 60074, 68845, 85820, 120148, 137690, 150185, 172253, 275380, 300370, 344506, 600740, 689012, 861265, 1205771, 1722530, 2411542, 3445060, 4823084, 6028855, 8440397, 12057710, 16880794, 24115420, 33761588, 42201985, 84403970, 168807940]

約数ペア:

[(1, 168807940), (2, 84403970), (4, 42201985), (5, 33761588), (7, 24115420), (10, 16880794), (14, 12057710), (20, 8440397), (28, 6028855), (35, 4823084), (49, 3445060), (70, 2411542), (98, 1722530), (140, 1205771), (196, 861265), (245, 689012), (281, 600740), (490, 344506), (562, 300370), (613, 275380), (980, 172253), (1124, 150185), (1226, 137690), (1405, 120148), (1967, 85820), (2452, 68845), (2810, 60074), (3065, 55076), (3934, 42910), (4291, 39340), (5620, 30037), (6130, 27538), (7868, 21455), (8582, 19670), (9835, 17164), (12260, 13769)]