18431840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{2351}}^1$

素因数の和:2380

約数の個数: 72

約数和(自身を含む): 50676192

約数和(自身を除く): 32244352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 2351, 3920, 4702, 7840, 9404, 11755, 16457, 18808, 23510, 32914, 37616, 47020, 65828, 75232, 82285, 94040, 115199, 131656, 164570, 188080, 230398, 263312, 329140, 376160, 460796, 526624, 575995, 658280, 921592, 1151990, 1316560, 1843184, 2303980, 2633120, 3686368, 4607960, 9215920, 18431840]

約数ペア:

[(1, 18431840), (2, 9215920), (4, 4607960), (5, 3686368), (7, 2633120), (8, 2303980), (10, 1843184), (14, 1316560), (16, 1151990), (20, 921592), (28, 658280), (32, 575995), (35, 526624), (40, 460796), (49, 376160), (56, 329140), (70, 263312), (80, 230398), (98, 188080), (112, 164570), (140, 131656), (160, 115199), (196, 94040), (224, 82285), (245, 75232), (280, 65828), (392, 47020), (490, 37616), (560, 32914), (784, 23510), (980, 18808), (1120, 16457), (1568, 11755), (1960, 9404), (2351, 7840), (3920, 4702)]