1978132

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 3773000

約数和(自身を除く): 1794868

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 349, 436, 698, 1396, 1417, 2834, 4537, 5668, 9074, 18148, 38041, 76082, 152164, 494533, 989066, 1978132]

約数ペア:

[(1, 1978132), (2, 989066), (4, 494533), (13, 152164), (26, 76082), (52, 38041), (109, 18148), (218, 9074), (349, 5668), (436, 4537), (698, 2834), (1396, 1417)]