1285754985

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{3947}}^1$

素因数の和:4107

約数の個数: 64

約数和(自身を含む): 2425651200

約数和(自身を除く): 1139896215

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 127, 135, 171, 285, 381, 513, 635, 855, 1143, 1905, 2413, 2565, 3429, 3947, 5715, 7239, 11841, 12065, 17145, 19735, 21717, 35523, 36195, 59205, 65151, 74993, 106569, 108585, 177615, 224979, 325755, 374965, 501269, 532845, 674937, 1124895, 1503807, 2024811, 2506345, 3374685, 4511421, 7519035, 9524111, 10124055, 13534263, 22557105, 28572333, 47620555, 67671315, 85716999, 142861665, 257150997, 428584995, 1285754985]

約数ペア:

[(1, 1285754985), (3, 428584995), (5, 257150997), (9, 142861665), (15, 85716999), (19, 67671315), (27, 47620555), (45, 28572333), (57, 22557105), (95, 13534263), (127, 10124055), (135, 9524111), (171, 7519035), (285, 4511421), (381, 3374685), (513, 2506345), (635, 2024811), (855, 1503807), (1143, 1124895), (1905, 674937), (2413, 532845), (2565, 501269), (3429, 374965), (3947, 325755), (5715, 224979), (7239, 177615), (11841, 108585), (12065, 106569), (17145, 74993), (19735, 65151), (21717, 59205), (35523, 36195)]