1388403740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{751}}^1\times {\mathrm{4019}}^1$

素因数の和:4802

約数の個数: 48

約数和(自身を含む): 3047224320

約数和(自身を除く): 1658820580

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 751, 1502, 3004, 3755, 4019, 7510, 8038, 15020, 16076, 17273, 20095, 34546, 40190, 69092, 80380, 86365, 92437, 172730, 184874, 345460, 369748, 462185, 924370, 1848740, 3018269, 6036538, 12073076, 15091345, 30182690, 60365380, 69420187, 138840374, 277680748, 347100935, 694201870, 1388403740]

約数ペア:

[(1, 1388403740), (2, 694201870), (4, 347100935), (5, 277680748), (10, 138840374), (20, 69420187), (23, 60365380), (46, 30182690), (92, 15091345), (115, 12073076), (230, 6036538), (460, 3018269), (751, 1848740), (1502, 924370), (3004, 462185), (3755, 369748), (4019, 345460), (7510, 184874), (8038, 172730), (15020, 92437), (16076, 86365), (17273, 80380), (20095, 69092), (34546, 40190)]