81870160

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19309}}^1$

素因数の和:19375

約数の個数: 40

約数和(自身を含む): 193949640

約数和(自身を除く): 112079480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 19309, 38618, 77236, 96545, 154472, 193090, 308944, 386180, 772360, 1023377, 1544720, 2046754, 4093508, 5116885, 8187016, 10233770, 16374032, 20467540, 40935080, 81870160]

約数ペア:

[(1, 81870160), (2, 40935080), (4, 20467540), (5, 16374032), (8, 10233770), (10, 8187016), (16, 5116885), (20, 4093508), (40, 2046754), (53, 1544720), (80, 1023377), (106, 772360), (212, 386180), (265, 308944), (424, 193090), (530, 154472), (848, 96545), (1060, 77236), (2120, 38618), (4240, 19309)]