28403716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 56689920

約数和(自身を除く): 28286204

約数列:

[1, 2, 4, 11, 22, 37, 44, 73, 74, 146, 148, 239, 292, 407, 478, 803, 814, 956, 1606, 1628, 2629, 2701, 3212, 5258, 5402, 8843, 10516, 10804, 17447, 17686, 29711, 34894, 35372, 59422, 69788, 97273, 118844, 191917, 194546, 383834, 389092, 645539, 767668, 1291078, 2582156, 7100929, 14201858, 28403716]

約数ペア:

[(1, 28403716), (2, 14201858), (4, 7100929), (11, 2582156), (22, 1291078), (37, 767668), (44, 645539), (73, 389092), (74, 383834), (146, 194546), (148, 191917), (239, 118844), (292, 97273), (407, 69788), (478, 59422), (803, 35372), (814, 34894), (956, 29711), (1606, 17686), (1628, 17447), (2629, 10804), (2701, 10516), (3212, 8843), (5258, 5402)]