81996040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3019}}^1$

素因数の和:3134

約数の個数: 64

約数和(自身を含む): 213091200

約数和(自身を除く): 131095160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 776, 970, 1358, 1940, 2716, 3019, 3395, 3880, 5432, 6038, 6790, 12076, 13580, 15095, 21133, 24152, 27160, 30190, 42266, 60380, 84532, 105665, 120760, 169064, 211330, 292843, 422660, 585686, 845320, 1171372, 1464215, 2049901, 2342744, 2928430, 4099802, 5856860, 8199604, 10249505, 11713720, 16399208, 20499010, 40998020, 81996040]

約数ペア:

[(1, 81996040), (2, 40998020), (4, 20499010), (5, 16399208), (7, 11713720), (8, 10249505), (10, 8199604), (14, 5856860), (20, 4099802), (28, 2928430), (35, 2342744), (40, 2049901), (56, 1464215), (70, 1171372), (97, 845320), (140, 585686), (194, 422660), (280, 292843), (388, 211330), (485, 169064), (679, 120760), (776, 105665), (970, 84532), (1358, 60380), (1940, 42266), (2716, 30190), (3019, 27160), (3395, 24152), (3880, 21133), (5432, 15095), (6038, 13580), (6790, 12076)]