22161320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{13513}}^1$

素因数の和:13565

約数の個数: 32

約数和(自身を含む): 51082920

約数和(自身を除く): 28921600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 13513, 27026, 54052, 67565, 108104, 135130, 270260, 540520, 554033, 1108066, 2216132, 2770165, 4432264, 5540330, 11080660, 22161320]

約数ペア:

[(1, 22161320), (2, 11080660), (4, 5540330), (5, 4432264), (8, 2770165), (10, 2216132), (20, 1108066), (40, 554033), (41, 540520), (82, 270260), (164, 135130), (205, 108104), (328, 67565), (410, 54052), (820, 27026), (1640, 13513)]