138702921320

素因数分解:

$2^3\times 5^1\times {\mathrm{10243}}^1\times {\mathrm{338531}}^1$

素因数の和:348785

約数の個数: 32

約数和(自身を含む): 312112962720

約数和(自身を除く): 173410041400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10243, 20486, 40972, 51215, 81944, 102430, 204860, 338531, 409720, 677062, 1354124, 1692655, 2708248, 3385310, 6770620, 13541240, 3467573033, 6935146066, 13870292132, 17337865165, 27740584264, 34675730330, 69351460660, 138702921320]

約数ペア:

[(1, 138702921320), (2, 69351460660), (4, 34675730330), (5, 27740584264), (8, 17337865165), (10, 13870292132), (20, 6935146066), (40, 3467573033), (10243, 13541240), (20486, 6770620), (40972, 3385310), (51215, 2708248), (81944, 1692655), (102430, 1354124), (204860, 677062), (338531, 409720)]