89749940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{997}}^1$

素因数の和:1656

約数の個数: 48

約数和(自身を含む): 215951232

約数和(自身を除く): 126201292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 997, 1286, 1994, 2572, 3215, 3988, 4501, 4985, 6430, 6979, 9002, 9970, 12860, 13958, 18004, 19940, 22505, 27916, 34895, 45010, 69790, 90020, 139580, 641071, 1282142, 2564284, 3205355, 4487497, 6410710, 8974994, 12821420, 17949988, 22437485, 44874970, 89749940]

約数ペア:

[(1, 89749940), (2, 44874970), (4, 22437485), (5, 17949988), (7, 12821420), (10, 8974994), (14, 6410710), (20, 4487497), (28, 3205355), (35, 2564284), (70, 1282142), (140, 641071), (643, 139580), (997, 90020), (1286, 69790), (1994, 45010), (2572, 34895), (3215, 27916), (3988, 22505), (4501, 19940), (4985, 18004), (6430, 13958), (6979, 12860), (9002, 9970)]