18539080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{907}}^1$

素因数の和:998

約数の個数: 64

約数和(自身を含む): 48378240

約数和(自身を除く): 29839160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 907, 1022, 1460, 1814, 2044, 2555, 2920, 3628, 4088, 4535, 5110, 6349, 7256, 9070, 10220, 12698, 18140, 20440, 25396, 31745, 36280, 50792, 63490, 66211, 126980, 132422, 253960, 264844, 331055, 463477, 529688, 662110, 926954, 1324220, 1853908, 2317385, 2648440, 3707816, 4634770, 9269540, 18539080]

約数ペア:

[(1, 18539080), (2, 9269540), (4, 4634770), (5, 3707816), (7, 2648440), (8, 2317385), (10, 1853908), (14, 1324220), (20, 926954), (28, 662110), (35, 529688), (40, 463477), (56, 331055), (70, 264844), (73, 253960), (140, 132422), (146, 126980), (280, 66211), (292, 63490), (365, 50792), (511, 36280), (584, 31745), (730, 25396), (907, 20440), (1022, 18140), (1460, 12698), (1814, 10220), (2044, 9070), (2555, 7256), (2920, 6349), (3628, 5110), (4088, 4535)]