1278420500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{15881}}^1$

素因数の和:15930

約数の個数: 96

約数和(自身を含む): 3329883648

約数和(自身を除く): 2051463148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 125, 140, 161, 175, 230, 250, 322, 350, 460, 500, 575, 644, 700, 805, 875, 1150, 1610, 1750, 2300, 2875, 3220, 3500, 4025, 5750, 8050, 11500, 15881, 16100, 20125, 31762, 40250, 63524, 79405, 80500, 111167, 158810, 222334, 317620, 365263, 397025, 444668, 555835, 730526, 794050, 1111670, 1461052, 1588100, 1826315, 1985125, 2223340, 2556841, 2779175, 3652630, 3970250, 5113682, 5558350, 7305260, 7940500, 9131575, 10227364, 11116700, 12784205, 13895875, 18263150, 25568410, 27791750, 36526300, 45657875, 51136820, 55583500, 63921025, 91315750, 127842050, 182631500, 255684100, 319605125, 639210250, 1278420500]

約数ペア:

[(1, 1278420500), (2, 639210250), (4, 319605125), (5, 255684100), (7, 182631500), (10, 127842050), (14, 91315750), (20, 63921025), (23, 55583500), (25, 51136820), (28, 45657875), (35, 36526300), (46, 27791750), (50, 25568410), (70, 18263150), (92, 13895875), (100, 12784205), (115, 11116700), (125, 10227364), (140, 9131575), (161, 7940500), (175, 7305260), (230, 5558350), (250, 5113682), (322, 3970250), (350, 3652630), (460, 2779175), (500, 2556841), (575, 2223340), (644, 1985125), (700, 1826315), (805, 1588100), (875, 1461052), (1150, 1111670), (1610, 794050), (1750, 730526), (2300, 555835), (2875, 444668), (3220, 397025), (3500, 365263), (4025, 317620), (5750, 222334), (8050, 158810), (11500, 111167), (15881, 80500), (16100, 79405), (20125, 63524), (31762, 40250)]