40756840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 94556160

約数和(自身を除く): 53799320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 113, 127, 142, 226, 254, 284, 355, 452, 508, 565, 568, 635, 710, 904, 1016, 1130, 1270, 1420, 2260, 2540, 2840, 4520, 5080, 8023, 9017, 14351, 16046, 18034, 28702, 32092, 36068, 40115, 45085, 57404, 64184, 71755, 72136, 80230, 90170, 114808, 143510, 160460, 180340, 287020, 320920, 360680, 574040, 1018921, 2037842, 4075684, 5094605, 8151368, 10189210, 20378420, 40756840]

約数ペア:

[(1, 40756840), (2, 20378420), (4, 10189210), (5, 8151368), (8, 5094605), (10, 4075684), (20, 2037842), (40, 1018921), (71, 574040), (113, 360680), (127, 320920), (142, 287020), (226, 180340), (254, 160460), (284, 143510), (355, 114808), (452, 90170), (508, 80230), (565, 72136), (568, 71755), (635, 64184), (710, 57404), (904, 45085), (1016, 40115), (1130, 36068), (1270, 32092), (1420, 28702), (2260, 18034), (2540, 16046), (2840, 14351), (4520, 9017), (5080, 8023)]