18966160

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{619}}^1$

素因数の和:1015

約数の個数: 40

約数和(自身を含む): 44282880

約数和(自身を除く): 25316720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 619, 766, 1238, 1532, 1915, 2476, 3064, 3095, 3830, 4952, 6128, 6190, 7660, 9904, 12380, 15320, 24760, 30640, 49520, 237077, 474154, 948308, 1185385, 1896616, 2370770, 3793232, 4741540, 9483080, 18966160]

約数ペア:

[(1, 18966160), (2, 9483080), (4, 4741540), (5, 3793232), (8, 2370770), (10, 1896616), (16, 1185385), (20, 948308), (40, 474154), (80, 237077), (383, 49520), (619, 30640), (766, 24760), (1238, 15320), (1532, 12380), (1915, 9904), (2476, 7660), (3064, 6190), (3095, 6128), (3830, 4952)]