131321540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{49369}}^1$

素因数の和:49404

約数の個数: 48

約数和(自身を含む): 331766400

約数和(自身を除く): 200444860

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 49369, 98738, 197476, 246845, 345583, 493690, 691166, 938011, 987380, 1382332, 1727915, 1876022, 3455830, 3752044, 4690055, 6566077, 6911660, 9380110, 13132154, 18760220, 26264308, 32830385, 65660770, 131321540]

約数ペア:

[(1, 131321540), (2, 65660770), (4, 32830385), (5, 26264308), (7, 18760220), (10, 13132154), (14, 9380110), (19, 6911660), (20, 6566077), (28, 4690055), (35, 3752044), (38, 3455830), (70, 1876022), (76, 1727915), (95, 1382332), (133, 987380), (140, 938011), (190, 691166), (266, 493690), (380, 345583), (532, 246845), (665, 197476), (1330, 98738), (2660, 49369)]