8431780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{263}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 20401920

約数和(自身を除く): 11970140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 229, 263, 458, 526, 916, 1052, 1145, 1315, 1603, 1841, 2290, 2630, 3206, 3682, 4580, 5260, 6412, 7364, 8015, 9205, 16030, 18410, 32060, 36820, 60227, 120454, 240908, 301135, 421589, 602270, 843178, 1204540, 1686356, 2107945, 4215890, 8431780]

約数ペア:

[(1, 8431780), (2, 4215890), (4, 2107945), (5, 1686356), (7, 1204540), (10, 843178), (14, 602270), (20, 421589), (28, 301135), (35, 240908), (70, 120454), (140, 60227), (229, 36820), (263, 32060), (458, 18410), (526, 16030), (916, 9205), (1052, 8015), (1145, 7364), (1315, 6412), (1603, 5260), (1841, 4580), (2290, 3682), (2630, 3206)]