81787456

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:563

約数の個数: 56

約数和(自身を含む): 168981120

約数和(自身を除く): 87193664

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 71, 82, 142, 164, 284, 328, 439, 568, 656, 878, 1136, 1312, 1756, 2272, 2624, 2911, 3512, 4544, 5822, 7024, 11644, 14048, 17999, 23288, 28096, 31169, 35998, 46576, 62338, 71996, 93152, 124676, 143992, 186304, 249352, 287984, 498704, 575968, 997408, 1151936, 1277929, 1994816, 2555858, 5111716, 10223432, 20446864, 40893728, 81787456]

約数ペア:

[(1, 81787456), (2, 40893728), (4, 20446864), (8, 10223432), (16, 5111716), (32, 2555858), (41, 1994816), (64, 1277929), (71, 1151936), (82, 997408), (142, 575968), (164, 498704), (284, 287984), (328, 249352), (439, 186304), (568, 143992), (656, 124676), (878, 93152), (1136, 71996), (1312, 62338), (1756, 46576), (2272, 35998), (2624, 31169), (2911, 28096), (3512, 23288), (4544, 17999), (5822, 14048), (7024, 11644)]