28591245

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 53856000

約数和(自身を除く): 25264755

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 67, 87, 109, 135, 145, 201, 261, 327, 335, 435, 545, 603, 783, 981, 1005, 1305, 1635, 1809, 1943, 2943, 3015, 3161, 3915, 4905, 5829, 7303, 9045, 9483, 9715, 14715, 15805, 17487, 21909, 28449, 29145, 36515, 47415, 52461, 65727, 85347, 87435, 109545, 142245, 197181, 211787, 262305, 328635, 426735, 635361, 985905, 1058935, 1906083, 3176805, 5718249, 9530415, 28591245]

約数ペア:

[(1, 28591245), (3, 9530415), (5, 5718249), (9, 3176805), (15, 1906083), (27, 1058935), (29, 985905), (45, 635361), (67, 426735), (87, 328635), (109, 262305), (135, 211787), (145, 197181), (201, 142245), (261, 109545), (327, 87435), (335, 85347), (435, 65727), (545, 52461), (603, 47415), (783, 36515), (981, 29145), (1005, 28449), (1305, 21909), (1635, 17487), (1809, 15805), (1943, 14715), (2943, 9715), (3015, 9483), (3161, 9045), (3915, 7303), (4905, 5829)]