64784620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{190543}}^1$

素因数の和:190569

約数の個数: 24

約数和(自身を含む): 144051264

約数和(自身を除く): 79266644

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 190543, 381086, 762172, 952715, 1905430, 3239231, 3810860, 6478462, 12956924, 16196155, 32392310, 64784620]

約数ペア:

[(1, 64784620), (2, 32392310), (4, 16196155), (5, 12956924), (10, 6478462), (17, 3810860), (20, 3239231), (34, 1905430), (68, 952715), (85, 762172), (170, 381086), (340, 190543)]