201728205

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{433}}^1$

素因数の和:500

約数の個数: 128

約数和(自身を含む): 449971200

約数和(自身を除く): 248242995

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 29, 35, 45, 51, 63, 85, 87, 105, 119, 135, 145, 153, 189, 203, 255, 261, 315, 357, 433, 435, 459, 493, 595, 609, 765, 783, 945, 1015, 1071, 1299, 1305, 1479, 1785, 1827, 2165, 2295, 2465, 3031, 3045, 3213, 3451, 3897, 3915, 4437, 5355, 5481, 6495, 7361, 7395, 9093, 9135, 10353, 11691, 12557, 13311, 15155, 16065, 17255, 19485, 22083, 22185, 27279, 27405, 31059, 36805, 37671, 45465, 51527, 51765, 58455, 62785, 66249, 66555, 81837, 87899, 93177, 110415, 113013, 136395, 154581, 155295, 188355, 198747, 213469, 257635, 263697, 331245, 339039, 409185, 439495, 463743, 465885, 565065, 640407, 772905, 791091, 993735, 1067345, 1318485, 1391229, 1494283, 1695195, 1921221, 2318715, 2373273, 3202035, 3955455, 4482849, 5763663, 6956145, 7471415, 9606105, 11866365, 13448547, 22414245, 28818315, 40345641, 67242735, 201728205]

約数ペア:

[(1, 201728205), (3, 67242735), (5, 40345641), (7, 28818315), (9, 22414245), (15, 13448547), (17, 11866365), (21, 9606105), (27, 7471415), (29, 6956145), (35, 5763663), (45, 4482849), (51, 3955455), (63, 3202035), (85, 2373273), (87, 2318715), (105, 1921221), (119, 1695195), (135, 1494283), (145, 1391229), (153, 1318485), (189, 1067345), (203, 993735), (255, 791091), (261, 772905), (315, 640407), (357, 565065), (433, 465885), (435, 463743), (459, 439495), (493, 409185), (595, 339039), (609, 331245), (765, 263697), (783, 257635), (945, 213469), (1015, 198747), (1071, 188355), (1299, 155295), (1305, 154581), (1479, 136395), (1785, 113013), (1827, 110415), (2165, 93177), (2295, 87899), (2465, 81837), (3031, 66555), (3045, 66249), (3213, 62785), (3451, 58455), (3897, 51765), (3915, 51527), (4437, 45465), (5355, 37671), (5481, 36805), (6495, 31059), (7361, 27405), (7395, 27279), (9093, 22185), (9135, 22083), (10353, 19485), (11691, 17255), (12557, 16065), (13311, 15155)]