1358140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 3326400

約数和(自身を除く): 1968260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 109, 140, 178, 218, 356, 436, 445, 545, 623, 763, 890, 1090, 1246, 1526, 1780, 2180, 2492, 3052, 3115, 3815, 6230, 7630, 9701, 12460, 15260, 19402, 38804, 48505, 67907, 97010, 135814, 194020, 271628, 339535, 679070, 1358140]

約数ペア:

[(1, 1358140), (2, 679070), (4, 339535), (5, 271628), (7, 194020), (10, 135814), (14, 97010), (20, 67907), (28, 48505), (35, 38804), (70, 19402), (89, 15260), (109, 12460), (140, 9701), (178, 7630), (218, 6230), (356, 3815), (436, 3115), (445, 3052), (545, 2492), (623, 2180), (763, 1780), (890, 1526), (1090, 1246)]