87411320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 204768000

約数和(自身を除く): 117356680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 157, 248, 310, 314, 449, 620, 628, 785, 898, 1240, 1256, 1570, 1796, 2245, 3140, 3592, 4490, 4867, 6280, 8980, 9734, 13919, 17960, 19468, 24335, 27838, 38936, 48670, 55676, 69595, 70493, 97340, 111352, 139190, 140986, 194680, 278380, 281972, 352465, 556760, 563944, 704930, 1409860, 2185283, 2819720, 4370566, 8741132, 10926415, 17482264, 21852830, 43705660, 87411320]

約数ペア:

[(1, 87411320), (2, 43705660), (4, 21852830), (5, 17482264), (8, 10926415), (10, 8741132), (20, 4370566), (31, 2819720), (40, 2185283), (62, 1409860), (124, 704930), (155, 563944), (157, 556760), (248, 352465), (310, 281972), (314, 278380), (449, 194680), (620, 140986), (628, 139190), (785, 111352), (898, 97340), (1240, 70493), (1256, 69595), (1570, 55676), (1796, 48670), (2245, 38936), (3140, 27838), (3592, 24335), (4490, 19468), (4867, 17960), (6280, 13919), (8980, 9734)]