81778970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89867}}^1$

素因数の和:89894

約数の個数: 32

約数和(自身を含む): 181173888

約数和(自身を除く): 99394918

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 89867, 179734, 449335, 629069, 898670, 1168271, 1258138, 2336542, 3145345, 5841355, 6290690, 8177897, 11682710, 16355794, 40889485, 81778970]

約数ペア:

[(1, 81778970), (2, 40889485), (5, 16355794), (7, 11682710), (10, 8177897), (13, 6290690), (14, 5841355), (26, 3145345), (35, 2336542), (65, 1258138), (70, 1168271), (91, 898670), (130, 629069), (182, 449335), (455, 179734), (910, 89867)]