187880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1$

素因数の和:90

約数の個数: 64

約数和(自身を含む): 535680

約数和(自身を除く): 347800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 61, 70, 77, 88, 110, 122, 140, 154, 220, 244, 280, 305, 308, 385, 427, 440, 488, 610, 616, 671, 770, 854, 1220, 1342, 1540, 1708, 2135, 2440, 2684, 3080, 3355, 3416, 4270, 4697, 5368, 6710, 8540, 9394, 13420, 17080, 18788, 23485, 26840, 37576, 46970, 93940, 187880]

約数ペア:

[(1, 187880), (2, 93940), (4, 46970), (5, 37576), (7, 26840), (8, 23485), (10, 18788), (11, 17080), (14, 13420), (20, 9394), (22, 8540), (28, 6710), (35, 5368), (40, 4697), (44, 4270), (55, 3416), (56, 3355), (61, 3080), (70, 2684), (77, 2440), (88, 2135), (110, 1708), (122, 1540), (140, 1342), (154, 1220), (220, 854), (244, 770), (280, 671), (305, 616), (308, 610), (385, 488), (427, 440)]