28409788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2050

約数の個数: 48

約数和(自身を含む): 60480000

約数和(自身を除く): 32070212

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 38, 44, 68, 76, 187, 209, 323, 374, 418, 646, 748, 836, 1292, 1999, 3553, 3998, 7106, 7996, 14212, 21989, 33983, 37981, 43978, 67966, 75962, 87956, 135932, 151924, 373813, 417791, 645677, 747626, 835582, 1291354, 1495252, 1671164, 2582708, 7102447, 14204894, 28409788]

約数ペア:

[(1, 28409788), (2, 14204894), (4, 7102447), (11, 2582708), (17, 1671164), (19, 1495252), (22, 1291354), (34, 835582), (38, 747626), (44, 645677), (68, 417791), (76, 373813), (187, 151924), (209, 135932), (323, 87956), (374, 75962), (418, 67966), (646, 43978), (748, 37981), (836, 33983), (1292, 21989), (1999, 14212), (3553, 7996), (3998, 7106)]