87938960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64661}}^1$

素因数の和:64691

約数の個数: 40

約数和(自身を含む): 216488376

約数和(自身を除く): 128549416

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 64661, 129322, 258644, 323305, 517288, 646610, 1034576, 1099237, 1293220, 2198474, 2586440, 4396948, 5172880, 5496185, 8793896, 10992370, 17587792, 21984740, 43969480, 87938960]

約数ペア:

[(1, 87938960), (2, 43969480), (4, 21984740), (5, 17587792), (8, 10992370), (10, 8793896), (16, 5496185), (17, 5172880), (20, 4396948), (34, 2586440), (40, 2198474), (68, 1293220), (80, 1099237), (85, 1034576), (136, 646610), (170, 517288), (272, 323305), (340, 258644), (680, 129322), (1360, 64661)]