66330680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:864

約数の個数: 64

約数和(自身を含む): 161784000

約数和(自身を除く): 95453320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 260, 398, 520, 641, 796, 995, 1282, 1592, 1990, 2564, 2587, 3205, 3980, 5128, 5174, 6410, 7960, 8333, 10348, 12820, 12935, 16666, 20696, 25640, 25870, 33332, 41665, 51740, 66664, 83330, 103480, 127559, 166660, 255118, 333320, 510236, 637795, 1020472, 1275590, 1658267, 2551180, 3316534, 5102360, 6633068, 8291335, 13266136, 16582670, 33165340, 66330680]

約数ペア:

[(1, 66330680), (2, 33165340), (4, 16582670), (5, 13266136), (8, 8291335), (10, 6633068), (13, 5102360), (20, 3316534), (26, 2551180), (40, 1658267), (52, 1275590), (65, 1020472), (104, 637795), (130, 510236), (199, 333320), (260, 255118), (398, 166660), (520, 127559), (641, 103480), (796, 83330), (995, 66664), (1282, 51740), (1592, 41665), (1990, 33332), (2564, 25870), (2587, 25640), (3205, 20696), (3980, 16666), (5128, 12935), (5174, 12820), (6410, 10348), (7960, 8333)]