1978120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2909}}^1$

素因数の和:2937

約数の個数: 32

約数和(自身を含む): 4714200

約数和(自身を除く): 2736080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 2909, 5818, 11636, 14545, 23272, 29090, 49453, 58180, 98906, 116360, 197812, 247265, 395624, 494530, 989060, 1978120]

約数ペア:

[(1, 1978120), (2, 989060), (4, 494530), (5, 395624), (8, 247265), (10, 197812), (17, 116360), (20, 98906), (34, 58180), (40, 49453), (68, 29090), (85, 23272), (136, 14545), (170, 11636), (340, 5818), (680, 2909)]