20820510

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1307}}^1$

素因数の和:1382

約数の個数: 64

約数和(自身を含む): 56505600

約数和(自身を除く): 35685090

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 59, 90, 118, 135, 177, 270, 295, 354, 531, 590, 885, 1062, 1307, 1593, 1770, 2614, 2655, 3186, 3921, 5310, 6535, 7842, 7965, 11763, 13070, 15930, 19605, 23526, 35289, 39210, 58815, 70578, 77113, 117630, 154226, 176445, 231339, 352890, 385565, 462678, 694017, 771130, 1156695, 1388034, 2082051, 2313390, 3470085, 4164102, 6940170, 10410255, 20820510]

約数ペア:

[(1, 20820510), (2, 10410255), (3, 6940170), (5, 4164102), (6, 3470085), (9, 2313390), (10, 2082051), (15, 1388034), (18, 1156695), (27, 771130), (30, 694017), (45, 462678), (54, 385565), (59, 352890), (90, 231339), (118, 176445), (135, 154226), (177, 117630), (270, 77113), (295, 70578), (354, 58815), (531, 39210), (590, 35289), (885, 23526), (1062, 19605), (1307, 15930), (1593, 13070), (1770, 11763), (2614, 7965), (2655, 7842), (3186, 6535), (3921, 5310)]