139257320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{84913}}^1$

素因数の和:84965

約数の個数: 32

約数和(自身を含む): 320974920

約数和(自身を除く): 181717600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 84913, 169826, 339652, 424565, 679304, 849130, 1698260, 3396520, 3481433, 6962866, 13925732, 17407165, 27851464, 34814330, 69628660, 139257320]

約数ペア:

[(1, 139257320), (2, 69628660), (4, 34814330), (5, 27851464), (8, 17407165), (10, 13925732), (20, 6962866), (40, 3481433), (41, 3396520), (82, 1698260), (164, 849130), (205, 679304), (328, 424565), (410, 339652), (820, 169826), (1640, 84913)]