9118940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 19958400

約数和(自身を除く): 10839460

約数列:

[1, 2, 4, 5, 10, 20, 47, 89, 94, 109, 178, 188, 218, 235, 356, 436, 445, 470, 545, 890, 940, 1090, 1780, 2180, 4183, 5123, 8366, 9701, 10246, 16732, 19402, 20492, 20915, 25615, 38804, 41830, 48505, 51230, 83660, 97010, 102460, 194020, 455947, 911894, 1823788, 2279735, 4559470, 9118940]

約数ペア:

[(1, 9118940), (2, 4559470), (4, 2279735), (5, 1823788), (10, 911894), (20, 455947), (47, 194020), (89, 102460), (94, 97010), (109, 83660), (178, 51230), (188, 48505), (218, 41830), (235, 38804), (356, 25615), (436, 20915), (445, 20492), (470, 19402), (545, 16732), (890, 10246), (940, 9701), (1090, 8366), (1780, 5123), (2180, 4183)]