20880210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1447}}^1$

素因数の和:1507

約数の個数: 64

約数和(自身を含む): 55464192

約数和(自身を除く): 34583982

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1443, 1447, 2405, 2886, 2894, 4341, 4810, 7215, 7235, 8682, 14430, 14470, 18811, 21705, 37622, 43410, 53539, 56433, 94055, 107078, 112866, 160617, 188110, 267695, 282165, 321234, 535390, 564330, 696007, 803085, 1392014, 1606170, 2088021, 3480035, 4176042, 6960070, 10440105, 20880210]

約数ペア:

[(1, 20880210), (2, 10440105), (3, 6960070), (5, 4176042), (6, 3480035), (10, 2088021), (13, 1606170), (15, 1392014), (26, 803085), (30, 696007), (37, 564330), (39, 535390), (65, 321234), (74, 282165), (78, 267695), (111, 188110), (130, 160617), (185, 112866), (195, 107078), (222, 94055), (370, 56433), (390, 53539), (481, 43410), (555, 37622), (962, 21705), (1110, 18811), (1443, 14470), (1447, 14430), (2405, 8682), (2886, 7235), (2894, 7215), (4341, 4810)]