388331320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{746791}}^1$

素因数の和:746815

約数の個数: 32

約数和(自身を含む): 940957920

約数和(自身を除く): 552626600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 746791, 1493582, 2987164, 3733955, 5974328, 7467910, 9708283, 14935820, 19416566, 29871640, 38833132, 48541415, 77666264, 97082830, 194165660, 388331320]

約数ペア:

[(1, 388331320), (2, 194165660), (4, 97082830), (5, 77666264), (8, 48541415), (10, 38833132), (13, 29871640), (20, 19416566), (26, 14935820), (40, 9708283), (52, 7467910), (65, 5974328), (104, 3733955), (130, 2987164), (260, 1493582), (520, 746791)]