18089020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{641}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 40769568

約数和(自身を除く): 22680548

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 83, 85, 166, 170, 332, 340, 415, 641, 830, 1282, 1411, 1660, 2564, 2822, 3205, 5644, 6410, 7055, 10897, 12820, 14110, 21794, 28220, 43588, 53203, 54485, 106406, 108970, 212812, 217940, 266015, 532030, 904451, 1064060, 1808902, 3617804, 4522255, 9044510, 18089020]

約数ペア:

[(1, 18089020), (2, 9044510), (4, 4522255), (5, 3617804), (10, 1808902), (17, 1064060), (20, 904451), (34, 532030), (68, 266015), (83, 217940), (85, 212812), (166, 108970), (170, 106406), (332, 54485), (340, 53203), (415, 43588), (641, 28220), (830, 21794), (1282, 14110), (1411, 12820), (1660, 10897), (2564, 7055), (2822, 6410), (3205, 5644)]