891020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 2116800

約数和(自身を除く): 1225780

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 149, 230, 260, 298, 299, 460, 596, 598, 745, 1196, 1490, 1495, 1937, 2980, 2990, 3427, 3874, 5980, 6854, 7748, 9685, 13708, 17135, 19370, 34270, 38740, 44551, 68540, 89102, 178204, 222755, 445510, 891020]

約数ペア:

[(1, 891020), (2, 445510), (4, 222755), (5, 178204), (10, 89102), (13, 68540), (20, 44551), (23, 38740), (26, 34270), (46, 19370), (52, 17135), (65, 13708), (92, 9685), (115, 7748), (130, 6854), (149, 5980), (230, 3874), (260, 3427), (298, 2990), (299, 2980), (460, 1937), (596, 1495), (598, 1490), (745, 1196)]