290423280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{172871}}^1$

素因数の和:172894

約数の個数: 80

約数和(自身を含む): 1028934144

約数和(自身を除く): 738510864

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 172871, 345742, 518613, 691484, 864355, 1037226, 1210097, 1382968, 1728710, 2074452, 2420194, 2593065, 2765936, 3457420, 3630291, 4148904, 4840388, 5186130, 6050485, 6914840, 7260582, 8297808, 9680776, 10372260, 12100970, 13829680, 14521164, 18151455, 19361552, 20744520, 24201940, 29042328, 36302910, 41489040, 48403880, 58084656, 72605820, 96807760, 145211640, 290423280]

約数ペア:

[(1, 290423280), (2, 145211640), (3, 96807760), (4, 72605820), (5, 58084656), (6, 48403880), (7, 41489040), (8, 36302910), (10, 29042328), (12, 24201940), (14, 20744520), (15, 19361552), (16, 18151455), (20, 14521164), (21, 13829680), (24, 12100970), (28, 10372260), (30, 9680776), (35, 8297808), (40, 7260582), (42, 6914840), (48, 6050485), (56, 5186130), (60, 4840388), (70, 4148904), (80, 3630291), (84, 3457420), (105, 2765936), (112, 2593065), (120, 2420194), (140, 2074452), (168, 1728710), (210, 1382968), (240, 1210097), (280, 1037226), (336, 864355), (420, 691484), (560, 518613), (840, 345742), (1680, 172871)]