2660980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 6491520

約数和(自身を除く): 3830540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 229, 332, 415, 458, 581, 830, 916, 1145, 1162, 1603, 1660, 2290, 2324, 2905, 3206, 4580, 5810, 6412, 8015, 11620, 16030, 19007, 32060, 38014, 76028, 95035, 133049, 190070, 266098, 380140, 532196, 665245, 1330490, 2660980]

約数ペア:

[(1, 2660980), (2, 1330490), (4, 665245), (5, 532196), (7, 380140), (10, 266098), (14, 190070), (20, 133049), (28, 95035), (35, 76028), (70, 38014), (83, 32060), (140, 19007), (166, 16030), (229, 11620), (332, 8015), (415, 6412), (458, 5810), (581, 4580), (830, 3206), (916, 2905), (1145, 2324), (1162, 2290), (1603, 1660)]