80218580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18149}}^1$

素因数の和:18188

約数の個数: 48

約数和(自身を含む): 192099600

約数和(自身を除く): 111881020

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 18149, 36298, 72596, 90745, 181490, 235937, 308533, 362980, 471874, 617066, 943748, 1179685, 1234132, 1542665, 2359370, 3085330, 4010929, 4718740, 6170660, 8021858, 16043716, 20054645, 40109290, 80218580]

約数ペア:

[(1, 80218580), (2, 40109290), (4, 20054645), (5, 16043716), (10, 8021858), (13, 6170660), (17, 4718740), (20, 4010929), (26, 3085330), (34, 2359370), (52, 1542665), (65, 1234132), (68, 1179685), (85, 943748), (130, 617066), (170, 471874), (221, 362980), (260, 308533), (340, 235937), (442, 181490), (884, 90745), (1105, 72596), (2210, 36298), (4420, 18149)]