20768758640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1951951}}^1$

素因数の和:1951990

約数の個数: 80

約数和(自身を含む): 58090091520

約数和(自身を除く): 37321332880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 10640, 1951951, 3903902, 7807804, 9759755, 13663657, 15615608, 19519510, 27327314, 31231216, 37087069, 39039020, 54654628, 68318285, 74174138, 78078040, 109309256, 136636570, 148348276, 156156080, 185435345, 218618512, 259609483, 273273140, 296696552, 370870690, 519218966, 546546280, 593393104, 741741380, 1038437932, 1093092560, 1298047415, 1483482760, 2076875864, 2596094830, 2966965520, 4153751728, 5192189660, 10384379320, 20768758640]

約数ペア:

[(1, 20768758640), (2, 10384379320), (4, 5192189660), (5, 4153751728), (7, 2966965520), (8, 2596094830), (10, 2076875864), (14, 1483482760), (16, 1298047415), (19, 1093092560), (20, 1038437932), (28, 741741380), (35, 593393104), (38, 546546280), (40, 519218966), (56, 370870690), (70, 296696552), (76, 273273140), (80, 259609483), (95, 218618512), (112, 185435345), (133, 156156080), (140, 148348276), (152, 136636570), (190, 109309256), (266, 78078040), (280, 74174138), (304, 68318285), (380, 54654628), (532, 39039020), (560, 37087069), (665, 31231216), (760, 27327314), (1064, 19519510), (1330, 15615608), (1520, 13663657), (2128, 9759755), (2660, 7807804), (5320, 3903902), (10640, 1951951)]