64223560

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11551}}^1$

素因数の和:11701

約数の個数: 32

約数和(自身を含む): 145555200

約数和(自身を除く): 81331640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 11551, 23102, 46204, 57755, 92408, 115510, 231020, 462040, 1605589, 3211178, 6422356, 8027945, 12844712, 16055890, 32111780, 64223560]

約数ペア:

[(1, 64223560), (2, 32111780), (4, 16055890), (5, 12844712), (8, 8027945), (10, 6422356), (20, 3211178), (40, 1605589), (139, 462040), (278, 231020), (556, 115510), (695, 92408), (1112, 57755), (1390, 46204), (2780, 23102), (5560, 11551)]