28023705

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 52496640

約数和(自身を除く): 24472935

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 61, 83, 123, 135, 183, 205, 249, 305, 369, 415, 549, 615, 747, 915, 1107, 1245, 1647, 1845, 2241, 2501, 2745, 3403, 3735, 5063, 5535, 7503, 8235, 10209, 11205, 12505, 15189, 17015, 22509, 25315, 30627, 37515, 45567, 51045, 67527, 75945, 91881, 112545, 136701, 153135, 207583, 227835, 337635, 459405, 622749, 683505, 1037915, 1868247, 3113745, 5604741, 9341235, 28023705]

約数ペア:

[(1, 28023705), (3, 9341235), (5, 5604741), (9, 3113745), (15, 1868247), (27, 1037915), (41, 683505), (45, 622749), (61, 459405), (83, 337635), (123, 227835), (135, 207583), (183, 153135), (205, 136701), (249, 112545), (305, 91881), (369, 75945), (415, 67527), (549, 51045), (615, 45567), (747, 37515), (915, 30627), (1107, 25315), (1245, 22509), (1647, 17015), (1845, 15189), (2241, 12505), (2501, 11205), (2745, 10209), (3403, 8235), (3735, 7503), (5063, 5535)]