18480560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:622

約数の個数: 80

約数和(自身を含む): 50002752

約数和(自身を除く): 31522192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 541, 560, 610, 854, 976, 1082, 1220, 1708, 2135, 2164, 2440, 2705, 3416, 3787, 4270, 4328, 4880, 5410, 6832, 7574, 8540, 8656, 10820, 15148, 17080, 18935, 21640, 30296, 33001, 34160, 37870, 43280, 60592, 66002, 75740, 132004, 151480, 165005, 231007, 264008, 302960, 330010, 462014, 528016, 660020, 924028, 1155035, 1320040, 1848056, 2310070, 2640080, 3696112, 4620140, 9240280, 18480560]

約数ペア:

[(1, 18480560), (2, 9240280), (4, 4620140), (5, 3696112), (7, 2640080), (8, 2310070), (10, 1848056), (14, 1320040), (16, 1155035), (20, 924028), (28, 660020), (35, 528016), (40, 462014), (56, 330010), (61, 302960), (70, 264008), (80, 231007), (112, 165005), (122, 151480), (140, 132004), (244, 75740), (280, 66002), (305, 60592), (427, 43280), (488, 37870), (541, 34160), (560, 33001), (610, 30296), (854, 21640), (976, 18935), (1082, 17080), (1220, 15148), (1708, 10820), (2135, 8656), (2164, 8540), (2440, 7574), (2705, 6832), (3416, 5410), (3787, 4880), (4270, 4328)]