7001980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8539}}^1$

素因数の和:8589

約数の個数: 24

約数和(自身を含む): 15064560

約数和(自身を除く): 8062580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 8539, 17078, 34156, 42695, 85390, 170780, 350099, 700198, 1400396, 1750495, 3500990, 7001980]

約数ペア:

[(1, 7001980), (2, 3500990), (4, 1750495), (5, 1400396), (10, 700198), (20, 350099), (41, 170780), (82, 85390), (164, 42695), (205, 34156), (410, 17078), (820, 8539)]