25703420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 57189888

約数和(自身を除く): 31486468

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 460, 710, 787, 1420, 1574, 1633, 3148, 3266, 3935, 6532, 7870, 8165, 15740, 16330, 18101, 32660, 36202, 55877, 72404, 90505, 111754, 181010, 223508, 279385, 362020, 558770, 1117540, 1285171, 2570342, 5140684, 6425855, 12851710, 25703420]

約数ペア:

[(1, 25703420), (2, 12851710), (4, 6425855), (5, 5140684), (10, 2570342), (20, 1285171), (23, 1117540), (46, 558770), (71, 362020), (92, 279385), (115, 223508), (142, 181010), (230, 111754), (284, 90505), (355, 72404), (460, 55877), (710, 36202), (787, 32660), (1420, 18101), (1574, 16330), (1633, 15740), (3148, 8165), (3266, 7870), (3935, 6532)]