8240260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 20079360

約数和(自身を除く): 11839100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 829, 994, 1420, 1658, 1988, 2485, 3316, 4145, 4970, 5803, 8290, 9940, 11606, 16580, 23212, 29015, 58030, 58859, 116060, 117718, 235436, 294295, 412013, 588590, 824026, 1177180, 1648052, 2060065, 4120130, 8240260]

約数ペア:

[(1, 8240260), (2, 4120130), (4, 2060065), (5, 1648052), (7, 1177180), (10, 824026), (14, 588590), (20, 412013), (28, 294295), (35, 235436), (70, 117718), (71, 116060), (140, 58859), (142, 58030), (284, 29015), (355, 23212), (497, 16580), (710, 11606), (829, 9940), (994, 8290), (1420, 5803), (1658, 4970), (1988, 4145), (2485, 3316)]