28312004

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 63345240

約数和(自身を除く): 35033236

約数列:

[1, 2, 4, 7, 14, 17, 28, 29, 34, 49, 58, 68, 98, 116, 119, 196, 203, 238, 293, 406, 476, 493, 586, 812, 833, 986, 1172, 1421, 1666, 1972, 2051, 2842, 3332, 3451, 4102, 4981, 5684, 6902, 8204, 8497, 9962, 13804, 14357, 16994, 19924, 24157, 28714, 33988, 34867, 48314, 57428, 59479, 69734, 96628, 118958, 139468, 144449, 237916, 244069, 288898, 416353, 488138, 577796, 832706, 976276, 1011143, 1665412, 2022286, 4044572, 7078001, 14156002, 28312004]

約数ペア:

[(1, 28312004), (2, 14156002), (4, 7078001), (7, 4044572), (14, 2022286), (17, 1665412), (28, 1011143), (29, 976276), (34, 832706), (49, 577796), (58, 488138), (68, 416353), (98, 288898), (116, 244069), (119, 237916), (196, 144449), (203, 139468), (238, 118958), (293, 96628), (406, 69734), (476, 59479), (493, 57428), (586, 48314), (812, 34867), (833, 33988), (986, 28714), (1172, 24157), (1421, 19924), (1666, 16994), (1972, 14357), (2051, 13804), (2842, 9962), (3332, 8497), (3451, 8204), (4102, 6902), (4981, 5684)]