13120520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1062

約数の個数: 64

約数和(自身を含む): 34490880

約数和(自身を除く): 21370360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 997, 1316, 1645, 1880, 1994, 2632, 3290, 3988, 4985, 6580, 6979, 7976, 9970, 13160, 13958, 19940, 27916, 34895, 39880, 46859, 55832, 69790, 93718, 139580, 187436, 234295, 279160, 328013, 374872, 468590, 656026, 937180, 1312052, 1640065, 1874360, 2624104, 3280130, 6560260, 13120520]

約数ペア:

[(1, 13120520), (2, 6560260), (4, 3280130), (5, 2624104), (7, 1874360), (8, 1640065), (10, 1312052), (14, 937180), (20, 656026), (28, 468590), (35, 374872), (40, 328013), (47, 279160), (56, 234295), (70, 187436), (94, 139580), (140, 93718), (188, 69790), (235, 55832), (280, 46859), (329, 39880), (376, 34895), (470, 27916), (658, 19940), (940, 13958), (997, 13160), (1316, 9970), (1645, 7976), (1880, 6979), (1994, 6580), (2632, 4985), (3290, 3988)]