2940820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 6652800

約数和(自身を除く): 3711980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 109, 142, 190, 218, 284, 355, 380, 436, 545, 710, 1090, 1349, 1420, 2071, 2180, 2698, 4142, 5396, 6745, 7739, 8284, 10355, 13490, 15478, 20710, 26980, 30956, 38695, 41420, 77390, 147041, 154780, 294082, 588164, 735205, 1470410, 2940820]

約数ペア:

[(1, 2940820), (2, 1470410), (4, 735205), (5, 588164), (10, 294082), (19, 154780), (20, 147041), (38, 77390), (71, 41420), (76, 38695), (95, 30956), (109, 26980), (142, 20710), (190, 15478), (218, 13490), (284, 10355), (355, 8284), (380, 7739), (436, 6745), (545, 5396), (710, 4142), (1090, 2698), (1349, 2180), (1420, 2071)]