18146655

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 33359040

約数和(自身を除く): 15212385

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 89, 115, 197, 207, 267, 345, 445, 591, 801, 985, 1035, 1335, 1773, 2047, 2955, 4005, 4531, 6141, 8865, 10235, 13593, 17533, 18423, 22655, 30705, 40779, 52599, 67965, 87665, 92115, 157797, 203895, 262995, 403259, 788985, 1209777, 2016295, 3629331, 6048885, 18146655]

約数ペア:

[(1, 18146655), (3, 6048885), (5, 3629331), (9, 2016295), (15, 1209777), (23, 788985), (45, 403259), (69, 262995), (89, 203895), (115, 157797), (197, 92115), (207, 87665), (267, 67965), (345, 52599), (445, 40779), (591, 30705), (801, 22655), (985, 18423), (1035, 17533), (1335, 13593), (1773, 10235), (2047, 8865), (2955, 6141), (4005, 4531)]