218213420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{12821}}^1$

素因数の和:12890

約数の個数: 48

約数和(自身を含む): 491133888

約数和(自身を除く): 272920468

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1702, 3404, 4255, 8510, 12821, 17020, 25642, 51284, 64105, 128210, 256420, 294883, 474377, 589766, 948754, 1179532, 1474415, 1897508, 2371885, 2948830, 4743770, 5897660, 9487540, 10910671, 21821342, 43642684, 54553355, 109106710, 218213420]

約数ペア:

[(1, 218213420), (2, 109106710), (4, 54553355), (5, 43642684), (10, 21821342), (20, 10910671), (23, 9487540), (37, 5897660), (46, 4743770), (74, 2948830), (92, 2371885), (115, 1897508), (148, 1474415), (185, 1179532), (230, 948754), (370, 589766), (460, 474377), (740, 294883), (851, 256420), (1702, 128210), (3404, 64105), (4255, 51284), (8510, 25642), (12821, 17020)]