20120803960

素因数分解:

$2^3\times 5^1\times {\mathrm{1193}}^1\times {\mathrm{421643}}^1$

素因数の和:422847

約数の個数: 32

約数和(自身を含む): 45309864240

約数和(自身を除く): 25189060280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1193, 2386, 4772, 5965, 9544, 11930, 23860, 47720, 421643, 843286, 1686572, 2108215, 3373144, 4216430, 8432860, 16865720, 503020099, 1006040198, 2012080396, 2515100495, 4024160792, 5030200990, 10060401980, 20120803960]

約数ペア:

[(1, 20120803960), (2, 10060401980), (4, 5030200990), (5, 4024160792), (8, 2515100495), (10, 2012080396), (20, 1006040198), (40, 503020099), (1193, 16865720), (2386, 8432860), (4772, 4216430), (5965, 3373144), (9544, 2108215), (11930, 1686572), (23860, 843286), (47720, 421643)]