131041456

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{90001}}^1$

素因数の和:90029

約数の個数: 40

約数和(自身を含む): 312486944

約数和(自身を除く): 181445488

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 90001, 180002, 360004, 630007, 720008, 1170013, 1260014, 1440016, 2340026, 2520028, 4680052, 5040056, 8190091, 9360104, 10080112, 16380182, 18720208, 32760364, 65520728, 131041456]

約数ペア:

[(1, 131041456), (2, 65520728), (4, 32760364), (7, 18720208), (8, 16380182), (13, 10080112), (14, 9360104), (16, 8190091), (26, 5040056), (28, 4680052), (52, 2520028), (56, 2340026), (91, 1440016), (104, 1260014), (112, 1170013), (182, 720008), (208, 630007), (364, 360004), (728, 180002), (1456, 90001)]