18016810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 38265696

約数和(自身を除く): 20248886

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 83, 98, 166, 245, 415, 443, 490, 581, 830, 886, 1162, 2215, 2905, 3101, 4067, 4430, 5810, 6202, 8134, 15505, 20335, 21707, 31010, 36769, 40670, 43414, 73538, 108535, 183845, 217070, 257383, 367690, 514766, 1286915, 1801681, 2573830, 3603362, 9008405, 18016810]

約数ペア:

[(1, 18016810), (2, 9008405), (5, 3603362), (7, 2573830), (10, 1801681), (14, 1286915), (35, 514766), (49, 367690), (70, 257383), (83, 217070), (98, 183845), (166, 108535), (245, 73538), (415, 43414), (443, 40670), (490, 36769), (581, 31010), (830, 21707), (886, 20335), (1162, 15505), (2215, 8134), (2905, 6202), (3101, 5810), (4067, 4430)]