1365656720

素因数分解:

$2^4\times 5^1\times {\mathrm{809}}^1\times {\mathrm{21101}}^1$

素因数の和:21923

約数の個数: 40

約数和(自身を含む): 3179227320

約数和(自身を除く): 1813570600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809, 1618, 3236, 4045, 6472, 8090, 12944, 16180, 21101, 32360, 42202, 64720, 84404, 105505, 168808, 211010, 337616, 422020, 844040, 1688080, 17070709, 34141418, 68282836, 85353545, 136565672, 170707090, 273131344, 341414180, 682828360, 1365656720]

約数ペア:

[(1, 1365656720), (2, 682828360), (4, 341414180), (5, 273131344), (8, 170707090), (10, 136565672), (16, 85353545), (20, 68282836), (40, 34141418), (80, 17070709), (809, 1688080), (1618, 844040), (3236, 422020), (4045, 337616), (6472, 211010), (8090, 168808), (12944, 105505), (16180, 84404), (21101, 64720), (32360, 42202)]