9209720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 22680000

約数和(自身を除く): 13470280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 89, 104, 130, 178, 199, 260, 356, 398, 445, 520, 712, 796, 890, 995, 1157, 1592, 1780, 1990, 2314, 2587, 3560, 3980, 4628, 5174, 5785, 7960, 9256, 10348, 11570, 12935, 17711, 20696, 23140, 25870, 35422, 46280, 51740, 70844, 88555, 103480, 141688, 177110, 230243, 354220, 460486, 708440, 920972, 1151215, 1841944, 2302430, 4604860, 9209720]

約数ペア:

[(1, 9209720), (2, 4604860), (4, 2302430), (5, 1841944), (8, 1151215), (10, 920972), (13, 708440), (20, 460486), (26, 354220), (40, 230243), (52, 177110), (65, 141688), (89, 103480), (104, 88555), (130, 70844), (178, 51740), (199, 46280), (260, 35422), (356, 25870), (398, 23140), (445, 20696), (520, 17711), (712, 12935), (796, 11570), (890, 10348), (995, 9256), (1157, 7960), (1592, 5785), (1780, 5174), (1990, 4628), (2314, 3980), (2587, 3560)]