80800020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{9161}}^1$

素因数の和:9190

約数の個数: 108

約数和(自身を含む): 285139764

約数和(自身を除く): 204339744

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 9161, 18322, 27483, 36644, 45805, 54966, 64127, 82449, 91610, 109932, 128254, 137415, 164898, 183220, 192381, 256508, 274830, 320635, 329796, 384762, 412245, 448889, 549660, 577143, 641270, 769524, 824490, 897778, 961905, 1154286, 1282540, 1346667, 1648980, 1795556, 1923810, 2244445, 2308572, 2693334, 2885715, 3847620, 4040001, 4488890, 5386668, 5771430, 6733335, 8080002, 8977780, 11542860, 13466670, 16160004, 20200005, 26933340, 40400010, 80800020]

約数ペア:

[(1, 80800020), (2, 40400010), (3, 26933340), (4, 20200005), (5, 16160004), (6, 13466670), (7, 11542860), (9, 8977780), (10, 8080002), (12, 6733335), (14, 5771430), (15, 5386668), (18, 4488890), (20, 4040001), (21, 3847620), (28, 2885715), (30, 2693334), (35, 2308572), (36, 2244445), (42, 1923810), (45, 1795556), (49, 1648980), (60, 1346667), (63, 1282540), (70, 1154286), (84, 961905), (90, 897778), (98, 824490), (105, 769524), (126, 641270), (140, 577143), (147, 549660), (180, 448889), (196, 412245), (210, 384762), (245, 329796), (252, 320635), (294, 274830), (315, 256508), (420, 192381), (441, 183220), (490, 164898), (588, 137415), (630, 128254), (735, 109932), (882, 91610), (980, 82449), (1260, 64127), (1470, 54966), (1764, 45805), (2205, 36644), (2940, 27483), (4410, 18322), (8820, 9161)]