8382040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 20412000

約数和(自身を除く): 12029960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 269, 328, 380, 410, 538, 760, 779, 820, 1076, 1345, 1558, 1640, 2152, 2690, 3116, 3895, 5111, 5380, 6232, 7790, 10222, 10760, 11029, 15580, 20444, 22058, 25555, 31160, 40888, 44116, 51110, 55145, 88232, 102220, 110290, 204440, 209551, 220580, 419102, 441160, 838204, 1047755, 1676408, 2095510, 4191020, 8382040]

約数ペア:

[(1, 8382040), (2, 4191020), (4, 2095510), (5, 1676408), (8, 1047755), (10, 838204), (19, 441160), (20, 419102), (38, 220580), (40, 209551), (41, 204440), (76, 110290), (82, 102220), (95, 88232), (152, 55145), (164, 51110), (190, 44116), (205, 40888), (269, 31160), (328, 25555), (380, 22058), (410, 20444), (538, 15580), (760, 11029), (779, 10760), (820, 10222), (1076, 7790), (1345, 6232), (1558, 5380), (1640, 5111), (2152, 3895), (2690, 3116)]