30964720

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 75129120

約数和(自身を除く): 44164400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 67, 80, 106, 109, 134, 212, 218, 265, 268, 335, 424, 436, 530, 536, 545, 670, 848, 872, 1060, 1072, 1090, 1340, 1744, 2120, 2180, 2680, 3551, 4240, 4360, 5360, 5777, 7102, 7303, 8720, 11554, 14204, 14606, 17755, 23108, 28408, 28885, 29212, 35510, 36515, 46216, 56816, 57770, 58424, 71020, 73030, 92432, 115540, 116848, 142040, 146060, 231080, 284080, 292120, 387059, 462160, 584240, 774118, 1548236, 1935295, 3096472, 3870590, 6192944, 7741180, 15482360, 30964720]

約数ペア:

[(1, 30964720), (2, 15482360), (4, 7741180), (5, 6192944), (8, 3870590), (10, 3096472), (16, 1935295), (20, 1548236), (40, 774118), (53, 584240), (67, 462160), (80, 387059), (106, 292120), (109, 284080), (134, 231080), (212, 146060), (218, 142040), (265, 116848), (268, 115540), (335, 92432), (424, 73030), (436, 71020), (530, 58424), (536, 57770), (545, 56816), (670, 46216), (848, 36515), (872, 35510), (1060, 29212), (1072, 28885), (1090, 28408), (1340, 23108), (1744, 17755), (2120, 14606), (2180, 14204), (2680, 11554), (3551, 8720), (4240, 7303), (4360, 7102), (5360, 5777)]