19824080

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{647}}^1$

素因数の和:1043

約数の個数: 40

約数和(自身を含む): 46282752

約数和(自身を除く): 26458672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 647, 766, 1294, 1532, 1915, 2588, 3064, 3235, 3830, 5176, 6128, 6470, 7660, 10352, 12940, 15320, 25880, 30640, 51760, 247801, 495602, 991204, 1239005, 1982408, 2478010, 3964816, 4956020, 9912040, 19824080]

約数ペア:

[(1, 19824080), (2, 9912040), (4, 4956020), (5, 3964816), (8, 2478010), (10, 1982408), (16, 1239005), (20, 991204), (40, 495602), (80, 247801), (383, 51760), (647, 30640), (766, 25880), (1294, 15320), (1532, 12940), (1915, 10352), (2588, 7660), (3064, 6470), (3235, 6128), (3830, 5176)]