2672020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 6209280

約数和(自身を除く): 3537260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 239, 260, 430, 478, 559, 860, 956, 1118, 1195, 2236, 2390, 2795, 3107, 4780, 5590, 6214, 10277, 11180, 12428, 15535, 20554, 31070, 41108, 51385, 62140, 102770, 133601, 205540, 267202, 534404, 668005, 1336010, 2672020]

約数ペア:

[(1, 2672020), (2, 1336010), (4, 668005), (5, 534404), (10, 267202), (13, 205540), (20, 133601), (26, 102770), (43, 62140), (52, 51385), (65, 41108), (86, 31070), (130, 20554), (172, 15535), (215, 12428), (239, 11180), (260, 10277), (430, 6214), (478, 5590), (559, 4780), (860, 3107), (956, 2795), (1118, 2390), (1195, 2236)]