18089140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 22271180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 181, 190, 263, 362, 380, 526, 724, 905, 1052, 1315, 1810, 2630, 3439, 3620, 4997, 5260, 6878, 9994, 13756, 17195, 19988, 24985, 34390, 47603, 49970, 68780, 95206, 99940, 190412, 238015, 476030, 904457, 952060, 1808914, 3617828, 4522285, 9044570, 18089140]

約数ペア:

[(1, 18089140), (2, 9044570), (4, 4522285), (5, 3617828), (10, 1808914), (19, 952060), (20, 904457), (38, 476030), (76, 238015), (95, 190412), (181, 99940), (190, 95206), (263, 68780), (362, 49970), (380, 47603), (526, 34390), (724, 24985), (905, 19988), (1052, 17195), (1315, 13756), (1810, 9994), (2630, 6878), (3439, 5260), (3620, 4997)]