728136415

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{643}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 938488320

約数和(自身を除く): 210351905

約数列:

[1, 5, 23, 43, 115, 215, 229, 643, 989, 1145, 3215, 4945, 5267, 9847, 14789, 26335, 27649, 49235, 73945, 138245, 147247, 226481, 635927, 736235, 1132405, 3179635, 3386681, 6331621, 16933405, 31658105, 145627283, 728136415]

約数ペア:

[(1, 728136415), (5, 145627283), (23, 31658105), (43, 16933405), (115, 6331621), (215, 3386681), (229, 3179635), (643, 1132405), (989, 736235), (1145, 635927), (3215, 226481), (4945, 147247), (5267, 138245), (9847, 73945), (14789, 49235), (26335, 27649)]