19812160

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{613}}^1$

素因数の和:731

約数の個数: 56

約数和(自身を含む): 47722536

約数和(自身を除く): 27910376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 613, 808, 1010, 1226, 1616, 2020, 2452, 3065, 3232, 4040, 4904, 6130, 6464, 8080, 9808, 12260, 16160, 19616, 24520, 32320, 39232, 49040, 61913, 98080, 123826, 196160, 247652, 309565, 495304, 619130, 990608, 1238260, 1981216, 2476520, 3962432, 4953040, 9906080, 19812160]

約数ペア:

[(1, 19812160), (2, 9906080), (4, 4953040), (5, 3962432), (8, 2476520), (10, 1981216), (16, 1238260), (20, 990608), (32, 619130), (40, 495304), (64, 309565), (80, 247652), (101, 196160), (160, 123826), (202, 98080), (320, 61913), (404, 49040), (505, 39232), (613, 32320), (808, 24520), (1010, 19616), (1226, 16160), (1616, 12260), (2020, 9808), (2452, 8080), (3065, 6464), (3232, 6130), (4040, 4904)]