639478868

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{769}}^1\times {\mathrm{1747}}^1$

素因数の和:2544

約数の個数: 48

約数和(自身を含む): 1356727680

約数和(自身を除く): 717248812

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 769, 1538, 1747, 3076, 3494, 5383, 6988, 10766, 12229, 13073, 21532, 24458, 26146, 29699, 48916, 52292, 59398, 91511, 118796, 183022, 207893, 366044, 415786, 831572, 1343443, 2686886, 5373772, 9404101, 18808202, 22838531, 37616404, 45677062, 91354124, 159869717, 319739434, 639478868]

約数ペア:

[(1, 639478868), (2, 319739434), (4, 159869717), (7, 91354124), (14, 45677062), (17, 37616404), (28, 22838531), (34, 18808202), (68, 9404101), (119, 5373772), (238, 2686886), (476, 1343443), (769, 831572), (1538, 415786), (1747, 366044), (3076, 207893), (3494, 183022), (5383, 118796), (6988, 91511), (10766, 59398), (12229, 52292), (13073, 48916), (21532, 29699), (24458, 26146)]