319649720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{3089}}^1$

素因数の和:3312

約数の個数: 64

約数和(自身を含む): 778680000

約数和(自身を除く): 459030280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 260, 398, 520, 796, 995, 1592, 1990, 2587, 3089, 3980, 5174, 6178, 7960, 10348, 12356, 12935, 15445, 20696, 24712, 25870, 30890, 40157, 51740, 61780, 80314, 103480, 123560, 160628, 200785, 321256, 401570, 614711, 803140, 1229422, 1606280, 2458844, 3073555, 4917688, 6147110, 7991243, 12294220, 15982486, 24588440, 31964972, 39956215, 63929944, 79912430, 159824860, 319649720]

約数ペア:

[(1, 319649720), (2, 159824860), (4, 79912430), (5, 63929944), (8, 39956215), (10, 31964972), (13, 24588440), (20, 15982486), (26, 12294220), (40, 7991243), (52, 6147110), (65, 4917688), (104, 3073555), (130, 2458844), (199, 1606280), (260, 1229422), (398, 803140), (520, 614711), (796, 401570), (995, 321256), (1592, 200785), (1990, 160628), (2587, 123560), (3089, 103480), (3980, 80314), (5174, 61780), (6178, 51740), (7960, 40157), (10348, 30890), (12356, 25870), (12935, 24712), (15445, 20696)]