2613640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 6240780

約数和(自身を除く): 3627140

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 181, 190, 361, 362, 380, 722, 724, 760, 905, 1444, 1448, 1805, 1810, 2888, 3439, 3610, 3620, 6878, 7220, 7240, 13756, 14440, 17195, 27512, 34390, 65341, 68780, 130682, 137560, 261364, 326705, 522728, 653410, 1306820, 2613640]

約数ペア:

[(1, 2613640), (2, 1306820), (4, 653410), (5, 522728), (8, 326705), (10, 261364), (19, 137560), (20, 130682), (38, 68780), (40, 65341), (76, 34390), (95, 27512), (152, 17195), (181, 14440), (190, 13756), (361, 7240), (362, 7220), (380, 6878), (722, 3620), (724, 3610), (760, 3439), (905, 2888), (1444, 1810), (1448, 1805)]