289659020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{8243}}^1$

素因数の和:8510

約数の個数: 48

約数和(自身を含む): 698035968

約数和(自身を除く): 408376948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 251, 502, 1004, 1255, 1757, 2510, 3514, 5020, 7028, 8243, 8785, 16486, 17570, 32972, 35140, 41215, 57701, 82430, 115402, 164860, 230804, 288505, 577010, 1154020, 2068993, 4137986, 8275972, 10344965, 14482951, 20689930, 28965902, 41379860, 57931804, 72414755, 144829510, 289659020]

約数ペア:

[(1, 289659020), (2, 144829510), (4, 72414755), (5, 57931804), (7, 41379860), (10, 28965902), (14, 20689930), (20, 14482951), (28, 10344965), (35, 8275972), (70, 4137986), (140, 2068993), (251, 1154020), (502, 577010), (1004, 288505), (1255, 230804), (1757, 164860), (2510, 115402), (3514, 82430), (5020, 57701), (7028, 41215), (8243, 35140), (8785, 32972), (16486, 17570)]