664713968

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{449}}^1\times {\mathrm{1381}}^1$

素因数の和:1905

約数の個数: 40

約数和(自身を含む): 1310965200

約数和(自身を除く): 646251232

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 449, 536, 898, 1072, 1381, 1796, 2762, 3592, 5524, 7184, 11048, 22096, 30083, 60166, 92527, 120332, 185054, 240664, 370108, 481328, 620069, 740216, 1240138, 1480432, 2480276, 4960552, 9921104, 41544623, 83089246, 166178492, 332356984, 664713968]

約数ペア:

[(1, 664713968), (2, 332356984), (4, 166178492), (8, 83089246), (16, 41544623), (67, 9921104), (134, 4960552), (268, 2480276), (449, 1480432), (536, 1240138), (898, 740216), (1072, 620069), (1381, 481328), (1796, 370108), (2762, 240664), (3592, 185054), (5524, 120332), (7184, 92527), (11048, 60166), (22096, 30083)]