399371280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21611}}^1$

素因数の和:21645

約数の個数: 160

約数和(自身を含む): 1543615488

約数和(自身を除く): 1144244208

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 105, 110, 112, 120, 132, 140, 154, 165, 168, 176, 210, 220, 231, 240, 264, 280, 308, 330, 336, 385, 420, 440, 462, 528, 560, 616, 660, 770, 840, 880, 924, 1155, 1232, 1320, 1540, 1680, 1848, 2310, 2640, 3080, 3696, 4620, 6160, 9240, 18480, 21611, 43222, 64833, 86444, 108055, 129666, 151277, 172888, 216110, 237721, 259332, 302554, 324165, 345776, 432220, 453831, 475442, 518664, 605108, 648330, 713163, 756385, 864440, 907662, 950884, 1037328, 1188605, 1210216, 1296660, 1426326, 1512770, 1664047, 1728880, 1815324, 1901768, 2269155, 2377210, 2420432, 2593320, 2852652, 3025540, 3328094, 3565815, 3630648, 3803536, 4538310, 4754420, 4992141, 5186640, 5705304, 6051080, 6656188, 7131630, 7261296, 8320235, 9076620, 9508840, 9984282, 11410608, 12102160, 13312376, 14263260, 16640470, 18153240, 19017680, 19968564, 24960705, 26624752, 28526520, 33280940, 36306480, 39937128, 49921410, 57053040, 66561880, 79874256, 99842820, 133123760, 199685640, 399371280]

約数ペア:

[(1, 399371280), (2, 199685640), (3, 133123760), (4, 99842820), (5, 79874256), (6, 66561880), (7, 57053040), (8, 49921410), (10, 39937128), (11, 36306480), (12, 33280940), (14, 28526520), (15, 26624752), (16, 24960705), (20, 19968564), (21, 19017680), (22, 18153240), (24, 16640470), (28, 14263260), (30, 13312376), (33, 12102160), (35, 11410608), (40, 9984282), (42, 9508840), (44, 9076620), (48, 8320235), (55, 7261296), (56, 7131630), (60, 6656188), (66, 6051080), (70, 5705304), (77, 5186640), (80, 4992141), (84, 4754420), (88, 4538310), (105, 3803536), (110, 3630648), (112, 3565815), (120, 3328094), (132, 3025540), (140, 2852652), (154, 2593320), (165, 2420432), (168, 2377210), (176, 2269155), (210, 1901768), (220, 1815324), (231, 1728880), (240, 1664047), (264, 1512770), (280, 1426326), (308, 1296660), (330, 1210216), (336, 1188605), (385, 1037328), (420, 950884), (440, 907662), (462, 864440), (528, 756385), (560, 713163), (616, 648330), (660, 605108), (770, 518664), (840, 475442), (880, 453831), (924, 432220), (1155, 345776), (1232, 324165), (1320, 302554), (1540, 259332), (1680, 237721), (1848, 216110), (2310, 172888), (2640, 151277), (3080, 129666), (3696, 108055), (4620, 86444), (6160, 64833), (9240, 43222), (18480, 21611)]