20070778

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{499}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 39528000

約数和(自身を除く): 19457222

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 169, 182, 221, 238, 338, 442, 499, 998, 1183, 1547, 2366, 2873, 3094, 3493, 5746, 6487, 6986, 8483, 12974, 16966, 20111, 40222, 45409, 59381, 84331, 90818, 110279, 118762, 168662, 220558, 590317, 771953, 1180634, 1433627, 1543906, 2867254, 10035389, 20070778]

約数ペア:

[(1, 20070778), (2, 10035389), (7, 2867254), (13, 1543906), (14, 1433627), (17, 1180634), (26, 771953), (34, 590317), (91, 220558), (119, 168662), (169, 118762), (182, 110279), (221, 90818), (238, 84331), (338, 59381), (442, 45409), (499, 40222), (998, 20111), (1183, 16966), (1547, 12974), (2366, 8483), (2873, 6986), (3094, 6487), (3493, 5746)]