88889320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{859}}^1$

素因数の和:1082

約数の個数: 64

約数和(自身を含む): 216720000

約数和(自身を除く): 127830680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 260, 398, 520, 796, 859, 995, 1592, 1718, 1990, 2587, 3436, 3980, 4295, 5174, 6872, 7960, 8590, 10348, 11167, 12935, 17180, 20696, 22334, 25870, 34360, 44668, 51740, 55835, 89336, 103480, 111670, 170941, 223340, 341882, 446680, 683764, 854705, 1367528, 1709410, 2222233, 3418820, 4444466, 6837640, 8888932, 11111165, 17777864, 22222330, 44444660, 88889320]

約数ペア:

[(1, 88889320), (2, 44444660), (4, 22222330), (5, 17777864), (8, 11111165), (10, 8888932), (13, 6837640), (20, 4444466), (26, 3418820), (40, 2222233), (52, 1709410), (65, 1367528), (104, 854705), (130, 683764), (199, 446680), (260, 341882), (398, 223340), (520, 170941), (796, 111670), (859, 103480), (995, 89336), (1592, 55835), (1718, 51740), (1990, 44668), (2587, 34360), (3436, 25870), (3980, 22334), (4295, 20696), (5174, 17180), (6872, 12935), (7960, 11167), (8590, 10348)]