71509940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{887}}^1$

素因数の和:1064

約数の個数: 48

約数和(自身を含む): 156643200

約数和(自身を除く): 85133260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 139, 145, 278, 290, 556, 580, 695, 887, 1390, 1774, 2780, 3548, 4031, 4435, 8062, 8870, 16124, 17740, 20155, 25723, 40310, 51446, 80620, 102892, 123293, 128615, 246586, 257230, 493172, 514460, 616465, 1232930, 2465860, 3575497, 7150994, 14301988, 17877485, 35754970, 71509940]

約数ペア:

[(1, 71509940), (2, 35754970), (4, 17877485), (5, 14301988), (10, 7150994), (20, 3575497), (29, 2465860), (58, 1232930), (116, 616465), (139, 514460), (145, 493172), (278, 257230), (290, 246586), (556, 128615), (580, 123293), (695, 102892), (887, 80620), (1390, 51446), (1774, 40310), (2780, 25723), (3548, 20155), (4031, 17740), (4435, 16124), (8062, 8870)]