280838285

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{601}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 423037440

約数和(自身を除く): 142199155

約数列:

[1, 5, 7, 13, 35, 65, 79, 91, 169, 395, 455, 553, 601, 845, 1027, 1183, 2765, 3005, 4207, 5135, 5915, 7189, 7813, 13351, 21035, 35945, 39065, 47479, 54691, 66755, 93457, 101569, 237395, 273455, 332353, 467285, 507845, 617227, 710983, 1661765, 3086135, 3554915, 4320589, 8023951, 21602945, 40119755, 56167657, 280838285]

約数ペア:

[(1, 280838285), (5, 56167657), (7, 40119755), (13, 21602945), (35, 8023951), (65, 4320589), (79, 3554915), (91, 3086135), (169, 1661765), (395, 710983), (455, 617227), (553, 507845), (601, 467285), (845, 332353), (1027, 273455), (1183, 237395), (2765, 101569), (3005, 93457), (4207, 66755), (5135, 54691), (5915, 47479), (7189, 39065), (7813, 35945), (13351, 21035)]