77978008

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{159791}}^1$

素因数の和:159858

約数の個数: 16

約数和(自身を含む): 148606560

約数和(自身を除く): 70628552

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 159791, 319582, 639164, 1278328, 9747251, 19494502, 38989004, 77978008]

約数ペア:

[(1, 77978008), (2, 38989004), (4, 19494502), (8, 9747251), (61, 1278328), (122, 639164), (244, 319582), (488, 159791)]