2887220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 7112448

約数和(自身を除く): 4225228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 503, 574, 820, 1006, 1148, 1435, 2012, 2515, 2870, 3521, 5030, 5740, 7042, 10060, 14084, 17605, 20623, 35210, 41246, 70420, 82492, 103115, 144361, 206230, 288722, 412460, 577444, 721805, 1443610, 2887220]

約数ペア:

[(1, 2887220), (2, 1443610), (4, 721805), (5, 577444), (7, 412460), (10, 288722), (14, 206230), (20, 144361), (28, 103115), (35, 82492), (41, 70420), (70, 41246), (82, 35210), (140, 20623), (164, 17605), (205, 14084), (287, 10060), (410, 7042), (503, 5740), (574, 5030), (820, 3521), (1006, 2870), (1148, 2515), (1435, 2012)]