1978828

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 3663072

約数和(自身を除く): 1684244

約数列:

[1, 2, 4, 23, 46, 92, 137, 157, 274, 314, 548, 628, 3151, 3611, 6302, 7222, 12604, 14444, 21509, 43018, 86036, 494707, 989414, 1978828]

約数ペア:

[(1, 1978828), (2, 989414), (4, 494707), (23, 86036), (46, 43018), (92, 21509), (137, 14444), (157, 12604), (274, 7222), (314, 6302), (548, 3611), (628, 3151)]