13289780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 33094656

約数和(自身を除く): 19804876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 191, 196, 245, 284, 355, 382, 490, 497, 710, 764, 955, 980, 994, 1337, 1420, 1910, 1988, 2485, 2674, 3479, 3820, 4970, 5348, 6685, 6958, 9359, 9940, 13370, 13561, 13916, 17395, 18718, 26740, 27122, 34790, 37436, 46795, 54244, 67805, 69580, 93590, 94927, 135610, 187180, 189854, 271220, 379708, 474635, 664489, 949270, 1328978, 1898540, 2657956, 3322445, 6644890, 13289780]

約数ペア:

[(1, 13289780), (2, 6644890), (4, 3322445), (5, 2657956), (7, 1898540), (10, 1328978), (14, 949270), (20, 664489), (28, 474635), (35, 379708), (49, 271220), (70, 189854), (71, 187180), (98, 135610), (140, 94927), (142, 93590), (191, 69580), (196, 67805), (245, 54244), (284, 46795), (355, 37436), (382, 34790), (490, 27122), (497, 26740), (710, 18718), (764, 17395), (955, 13916), (980, 13561), (994, 13370), (1337, 9940), (1420, 9359), (1910, 6958), (1988, 6685), (2485, 5348), (2674, 4970), (3479, 3820)]