20171302928

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1208731}}^1$

素因数の和:1208895

約数の個数: 40

約数和(自身を含む): 44964830400

約数和(自身を除く): 24793527472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1192, 2086, 2384, 4172, 8344, 16688, 1208731, 2417462, 4834924, 8461117, 9669848, 16922234, 19339696, 33844468, 67688936, 135377872, 180100919, 360201838, 720403676, 1260706433, 1440807352, 2521412866, 2881614704, 5042825732, 10085651464, 20171302928]

約数ペア:

[(1, 20171302928), (2, 10085651464), (4, 5042825732), (7, 2881614704), (8, 2521412866), (14, 1440807352), (16, 1260706433), (28, 720403676), (56, 360201838), (112, 180100919), (149, 135377872), (298, 67688936), (596, 33844468), (1043, 19339696), (1192, 16922234), (2086, 9669848), (2384, 8461117), (4172, 4834924), (8344, 2417462), (16688, 1208731)]