81559504

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392113}}^1$

素因数の和:392134

約数の個数: 20

約数和(自身を含む): 170177476

約数和(自身を除く): 88617972

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392113, 784226, 1568452, 3136904, 5097469, 6273808, 10194938, 20389876, 40779752, 81559504]

約数ペア:

[(1, 81559504), (2, 40779752), (4, 20389876), (8, 10194938), (13, 6273808), (16, 5097469), (26, 3136904), (52, 1568452), (104, 784226), (208, 392113)]