78484360

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{383}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 182476800

約数和(自身を除く): 103992440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 109, 188, 218, 235, 376, 383, 436, 470, 545, 766, 872, 940, 1090, 1532, 1880, 1915, 2180, 3064, 3830, 4360, 5123, 7660, 10246, 15320, 18001, 20492, 25615, 36002, 40984, 41747, 51230, 72004, 83494, 90005, 102460, 144008, 166988, 180010, 204920, 208735, 333976, 360020, 417470, 720040, 834940, 1669880, 1962109, 3924218, 7848436, 9810545, 15696872, 19621090, 39242180, 78484360]

約数ペア:

[(1, 78484360), (2, 39242180), (4, 19621090), (5, 15696872), (8, 9810545), (10, 7848436), (20, 3924218), (40, 1962109), (47, 1669880), (94, 834940), (109, 720040), (188, 417470), (218, 360020), (235, 333976), (376, 208735), (383, 204920), (436, 180010), (470, 166988), (545, 144008), (766, 102460), (872, 90005), (940, 83494), (1090, 72004), (1532, 51230), (1880, 41747), (1915, 40984), (2180, 36002), (3064, 25615), (3830, 20492), (4360, 18001), (5123, 15320), (7660, 10246)]