79754680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 186040800

約数和(自身を除く): 106286120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 172, 178, 215, 344, 356, 430, 445, 521, 712, 860, 890, 1042, 1720, 1780, 2084, 2605, 3560, 3827, 4168, 5210, 7654, 10420, 15308, 19135, 20840, 22403, 30616, 38270, 44806, 46369, 76540, 89612, 92738, 112015, 153080, 179224, 185476, 224030, 231845, 370952, 448060, 463690, 896120, 927380, 1854760, 1993867, 3987734, 7975468, 9969335, 15950936, 19938670, 39877340, 79754680]

約数ペア:

[(1, 79754680), (2, 39877340), (4, 19938670), (5, 15950936), (8, 9969335), (10, 7975468), (20, 3987734), (40, 1993867), (43, 1854760), (86, 927380), (89, 896120), (172, 463690), (178, 448060), (215, 370952), (344, 231845), (356, 224030), (430, 185476), (445, 179224), (521, 153080), (712, 112015), (860, 92738), (890, 89612), (1042, 76540), (1720, 46369), (1780, 44806), (2084, 38270), (2605, 30616), (3560, 22403), (3827, 20840), (4168, 19135), (5210, 15308), (7654, 10420)]