256809420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{67939}}^1$

素因数の和:67964

約数の個数: 96

約数和(自身を含む): 913113600

約数和(自身を除く): 656304180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 67939, 135878, 203817, 271756, 339695, 407634, 475573, 611451, 679390, 815268, 951146, 1019085, 1222902, 1358780, 1426719, 1834353, 1902292, 2038170, 2377865, 2445804, 2853438, 3057255, 3668706, 4076340, 4280157, 4755730, 5706876, 6114510, 7133595, 7337412, 8560314, 9171765, 9511460, 12229020, 12840471, 14267190, 17120628, 18343530, 21400785, 25680942, 28534380, 36687060, 42801570, 51361884, 64202355, 85603140, 128404710, 256809420]

約数ペア:

[(1, 256809420), (2, 128404710), (3, 85603140), (4, 64202355), (5, 51361884), (6, 42801570), (7, 36687060), (9, 28534380), (10, 25680942), (12, 21400785), (14, 18343530), (15, 17120628), (18, 14267190), (20, 12840471), (21, 12229020), (27, 9511460), (28, 9171765), (30, 8560314), (35, 7337412), (36, 7133595), (42, 6114510), (45, 5706876), (54, 4755730), (60, 4280157), (63, 4076340), (70, 3668706), (84, 3057255), (90, 2853438), (105, 2445804), (108, 2377865), (126, 2038170), (135, 1902292), (140, 1834353), (180, 1426719), (189, 1358780), (210, 1222902), (252, 1019085), (270, 951146), (315, 815268), (378, 679390), (420, 611451), (540, 475573), (630, 407634), (756, 339695), (945, 271756), (1260, 203817), (1890, 135878), (3780, 67939)]