78756660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2221}}^1$

素因数の和:2433

約数の個数: 72

約数和(自身を含む): 240215976

約数和(自身を除く): 161459316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1773, 1970, 2221, 2364, 2955, 3546, 3940, 4442, 5910, 6663, 7092, 8865, 8884, 11105, 11820, 13326, 17730, 19989, 22210, 26652, 33315, 35460, 39978, 44420, 66630, 79956, 99945, 133260, 199890, 399780, 437537, 875074, 1312611, 1750148, 2187685, 2625222, 3937833, 4375370, 5250444, 6563055, 7875666, 8750740, 13126110, 15751332, 19689165, 26252220, 39378330, 78756660]

約数ペア:

[(1, 78756660), (2, 39378330), (3, 26252220), (4, 19689165), (5, 15751332), (6, 13126110), (9, 8750740), (10, 7875666), (12, 6563055), (15, 5250444), (18, 4375370), (20, 3937833), (30, 2625222), (36, 2187685), (45, 1750148), (60, 1312611), (90, 875074), (180, 437537), (197, 399780), (394, 199890), (591, 133260), (788, 99945), (985, 79956), (1182, 66630), (1773, 44420), (1970, 39978), (2221, 35460), (2364, 33315), (2955, 26652), (3546, 22210), (3940, 19989), (4442, 17730), (5910, 13326), (6663, 11820), (7092, 11105), (8865, 8884)]