20691567340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{8363}}^1$

素因数の和:8791

約数の個数: 96

約数和(自身を含む): 48562053120

約数和(自身を除く): 27870485780

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 383, 646, 766, 1292, 1532, 1615, 1915, 3230, 3830, 6460, 6511, 7277, 7660, 8363, 13022, 14554, 16726, 26044, 29108, 32555, 33452, 36385, 41815, 65110, 72770, 83630, 123709, 130220, 142171, 145540, 158897, 167260, 247418, 284342, 317794, 494836, 568684, 618545, 635588, 710855, 794485, 1237090, 1421710, 1588970, 2474180, 2701249, 2843420, 3177940, 3203029, 5402498, 6406058, 10804996, 12812116, 13506245, 16015145, 27012490, 32030290, 54024980, 54451493, 60857551, 64060580, 108902986, 121715102, 217805972, 243430204, 272257465, 304287755, 544514930, 608575510, 1034578367, 1089029860, 1217151020, 2069156734, 4138313468, 5172891835, 10345783670, 20691567340]

約数ペア:

[(1, 20691567340), (2, 10345783670), (4, 5172891835), (5, 4138313468), (10, 2069156734), (17, 1217151020), (19, 1089029860), (20, 1034578367), (34, 608575510), (38, 544514930), (68, 304287755), (76, 272257465), (85, 243430204), (95, 217805972), (170, 121715102), (190, 108902986), (323, 64060580), (340, 60857551), (380, 54451493), (383, 54024980), (646, 32030290), (766, 27012490), (1292, 16015145), (1532, 13506245), (1615, 12812116), (1915, 10804996), (3230, 6406058), (3830, 5402498), (6460, 3203029), (6511, 3177940), (7277, 2843420), (7660, 2701249), (8363, 2474180), (13022, 1588970), (14554, 1421710), (16726, 1237090), (26044, 794485), (29108, 710855), (32555, 635588), (33452, 618545), (36385, 568684), (41815, 494836), (65110, 317794), (72770, 284342), (83630, 247418), (123709, 167260), (130220, 158897), (142171, 145540)]