1089340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 2709504

約数和(自身を除く): 1620164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 251, 310, 434, 502, 620, 868, 1004, 1085, 1255, 1757, 2170, 2510, 3514, 4340, 5020, 7028, 7781, 8785, 15562, 17570, 31124, 35140, 38905, 54467, 77810, 108934, 155620, 217868, 272335, 544670, 1089340]

約数ペア:

[(1, 1089340), (2, 544670), (4, 272335), (5, 217868), (7, 155620), (10, 108934), (14, 77810), (20, 54467), (28, 38905), (31, 35140), (35, 31124), (62, 17570), (70, 15562), (124, 8785), (140, 7781), (155, 7028), (217, 5020), (251, 4340), (310, 3514), (434, 2510), (502, 2170), (620, 1757), (868, 1255), (1004, 1085)]