71745940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{797}}^1$

素因数の和:1456

約数の個数: 48

約数和(自身を含む): 172674432

約数和(自身を除く): 100928492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 797, 1286, 1594, 2572, 3188, 3215, 3985, 4501, 5579, 6430, 7970, 9002, 11158, 12860, 15940, 18004, 22316, 22505, 27895, 45010, 55790, 90020, 111580, 512471, 1024942, 2049884, 2562355, 3587297, 5124710, 7174594, 10249420, 14349188, 17936485, 35872970, 71745940]

約数ペア:

[(1, 71745940), (2, 35872970), (4, 17936485), (5, 14349188), (7, 10249420), (10, 7174594), (14, 5124710), (20, 3587297), (28, 2562355), (35, 2049884), (70, 1024942), (140, 512471), (643, 111580), (797, 90020), (1286, 55790), (1594, 45010), (2572, 27895), (3188, 22505), (3215, 22316), (3985, 18004), (4501, 15940), (5579, 12860), (6430, 11158), (7970, 9002)]