28280916

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 74954880

約数和(自身を除く): 46673964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 103, 116, 174, 206, 261, 263, 309, 348, 412, 522, 526, 618, 789, 927, 1044, 1052, 1236, 1578, 1854, 2367, 2987, 3156, 3708, 4734, 5974, 7627, 8961, 9468, 11948, 15254, 17922, 22881, 26883, 27089, 30508, 35844, 45762, 53766, 54178, 68643, 81267, 91524, 107532, 108356, 137286, 162534, 243801, 274572, 325068, 487602, 785581, 975204, 1571162, 2356743, 3142324, 4713486, 7070229, 9426972, 14140458, 28280916]

約数ペア:

[(1, 28280916), (2, 14140458), (3, 9426972), (4, 7070229), (6, 4713486), (9, 3142324), (12, 2356743), (18, 1571162), (29, 975204), (36, 785581), (58, 487602), (87, 325068), (103, 274572), (116, 243801), (174, 162534), (206, 137286), (261, 108356), (263, 107532), (309, 91524), (348, 81267), (412, 68643), (522, 54178), (526, 53766), (618, 45762), (789, 35844), (927, 30508), (1044, 27089), (1052, 26883), (1236, 22881), (1578, 17922), (1854, 15254), (2367, 11948), (2987, 9468), (3156, 8961), (3708, 7627), (4734, 5974)]