18004890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 26784870

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 79, 107, 142, 158, 213, 214, 237, 321, 355, 395, 426, 474, 535, 642, 710, 790, 1065, 1070, 1185, 1605, 2130, 2370, 3210, 5609, 7597, 8453, 11218, 15194, 16827, 16906, 22791, 25359, 28045, 33654, 37985, 42265, 45582, 50718, 56090, 75970, 84135, 84530, 113955, 126795, 168270, 227910, 253590, 600163, 1200326, 1800489, 3000815, 3600978, 6001630, 9002445, 18004890]

約数ペア:

[(1, 18004890), (2, 9002445), (3, 6001630), (5, 3600978), (6, 3000815), (10, 1800489), (15, 1200326), (30, 600163), (71, 253590), (79, 227910), (107, 168270), (142, 126795), (158, 113955), (213, 84530), (214, 84135), (237, 75970), (321, 56090), (355, 50718), (395, 45582), (426, 42265), (474, 37985), (535, 33654), (642, 28045), (710, 25359), (790, 22791), (1065, 16906), (1070, 16827), (1185, 15194), (1605, 11218), (2130, 8453), (2370, 7597), (3210, 5609)]