279194895

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{997}}^1$

素因数の和:1149

約数の個数: 72

約数和(自身を含む): 567949824

約数和(自身を除く): 288754929

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 127, 147, 245, 315, 381, 441, 635, 735, 889, 997, 1143, 1905, 2205, 2667, 2991, 4445, 4985, 5715, 6223, 6979, 8001, 8973, 13335, 14955, 18669, 20937, 31115, 34895, 40005, 44865, 48853, 56007, 62811, 93345, 104685, 126619, 146559, 244265, 280035, 314055, 379857, 439677, 633095, 732795, 886333, 1139571, 1899285, 2198385, 2658999, 4431665, 5697855, 6204331, 7976997, 13294995, 18612993, 31021655, 39884985, 55838979, 93064965, 279194895]

約数ペア:

[(1, 279194895), (3, 93064965), (5, 55838979), (7, 39884985), (9, 31021655), (15, 18612993), (21, 13294995), (35, 7976997), (45, 6204331), (49, 5697855), (63, 4431665), (105, 2658999), (127, 2198385), (147, 1899285), (245, 1139571), (315, 886333), (381, 732795), (441, 633095), (635, 439677), (735, 379857), (889, 314055), (997, 280035), (1143, 244265), (1905, 146559), (2205, 126619), (2667, 104685), (2991, 93345), (4445, 62811), (4985, 56007), (5715, 48853), (6223, 44865), (6979, 40005), (8001, 34895), (8973, 31115), (13335, 20937), (14955, 18669)]