320547780

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1229}}^1$

素因数の和:1280

約数の個数: 240

約数和(自身を含む): 1200165120

約数和(自身を除く): 879617340

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 30, 35, 36, 42, 45, 46, 54, 60, 63, 69, 70, 81, 84, 90, 92, 105, 108, 115, 126, 135, 138, 140, 161, 162, 180, 189, 207, 210, 230, 252, 270, 276, 315, 322, 324, 345, 378, 405, 414, 420, 460, 483, 540, 567, 621, 630, 644, 690, 756, 805, 810, 828, 945, 966, 1035, 1134, 1229, 1242, 1260, 1380, 1449, 1610, 1620, 1863, 1890, 1932, 2070, 2268, 2415, 2458, 2484, 2835, 2898, 3105, 3220, 3687, 3726, 3780, 4140, 4347, 4830, 4916, 5670, 5796, 6145, 6210, 7245, 7374, 7452, 8603, 8694, 9315, 9660, 11061, 11340, 12290, 12420, 13041, 14490, 14748, 17206, 17388, 18435, 18630, 21735, 22122, 24580, 25809, 26082, 28267, 28980, 33183, 34412, 36870, 37260, 43015, 43470, 44244, 51618, 52164, 55305, 56534, 65205, 66366, 73740, 77427, 84801, 86030, 86940, 99549, 103236, 110610, 113068, 129045, 130410, 132732, 141335, 154854, 165915, 169602, 172060, 197869, 199098, 221220, 232281, 254403, 258090, 260820, 282670, 309708, 331830, 339204, 387135, 395738, 398196, 424005, 464562, 497745, 508806, 516180, 565340, 593607, 663660, 696843, 763209, 774270, 791476, 848010, 929124, 989345, 995490, 1017612, 1161405, 1187214, 1272015, 1393686, 1526418, 1548540, 1696020, 1780821, 1978690, 1990980, 2289627, 2322810, 2374428, 2544030, 2787372, 2968035, 3052836, 3484215, 3561642, 3816045, 3957380, 4579254, 4645620, 5088060, 5342463, 5936070, 6968430, 7123284, 7632090, 8904105, 9158508, 10684926, 11448135, 11872140, 13936860, 15264180, 16027389, 17808210, 21369852, 22896270, 26712315, 32054778, 35616420, 45792540, 53424630, 64109556, 80136945, 106849260, 160273890, 320547780]

約数ペア:

[(1, 320547780), (2, 160273890), (3, 106849260), (4, 80136945), (5, 64109556), (6, 53424630), (7, 45792540), (9, 35616420), (10, 32054778), (12, 26712315), (14, 22896270), (15, 21369852), (18, 17808210), (20, 16027389), (21, 15264180), (23, 13936860), (27, 11872140), (28, 11448135), (30, 10684926), (35, 9158508), (36, 8904105), (42, 7632090), (45, 7123284), (46, 6968430), (54, 5936070), (60, 5342463), (63, 5088060), (69, 4645620), (70, 4579254), (81, 3957380), (84, 3816045), (90, 3561642), (92, 3484215), (105, 3052836), (108, 2968035), (115, 2787372), (126, 2544030), (135, 2374428), (138, 2322810), (140, 2289627), (161, 1990980), (162, 1978690), (180, 1780821), (189, 1696020), (207, 1548540), (210, 1526418), (230, 1393686), (252, 1272015), (270, 1187214), (276, 1161405), (315, 1017612), (322, 995490), (324, 989345), (345, 929124), (378, 848010), (405, 791476), (414, 774270), (420, 763209), (460, 696843), (483, 663660), (540, 593607), (567, 565340), (621, 516180), (630, 508806), (644, 497745), (690, 464562), (756, 424005), (805, 398196), (810, 395738), (828, 387135), (945, 339204), (966, 331830), (1035, 309708), (1134, 282670), (1229, 260820), (1242, 258090), (1260, 254403), (1380, 232281), (1449, 221220), (1610, 199098), (1620, 197869), (1863, 172060), (1890, 169602), (1932, 165915), (2070, 154854), (2268, 141335), (2415, 132732), (2458, 130410), (2484, 129045), (2835, 113068), (2898, 110610), (3105, 103236), (3220, 99549), (3687, 86940), (3726, 86030), (3780, 84801), (4140, 77427), (4347, 73740), (4830, 66366), (4916, 65205), (5670, 56534), (5796, 55305), (6145, 52164), (6210, 51618), (7245, 44244), (7374, 43470), (7452, 43015), (8603, 37260), (8694, 36870), (9315, 34412), (9660, 33183), (11061, 28980), (11340, 28267), (12290, 26082), (12420, 25809), (13041, 24580), (14490, 22122), (14748, 21735), (17206, 18630), (17388, 18435)]