28060515

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{389}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 55972800

約数和(自身を除く): 27912285

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 229, 315, 389, 687, 1145, 1167, 1603, 1945, 2061, 2723, 3435, 3501, 4809, 5835, 8015, 8169, 10305, 13615, 14427, 17505, 24045, 24507, 40845, 72135, 89081, 122535, 267243, 445405, 623567, 801729, 1336215, 1870701, 3117835, 4008645, 5612103, 9353505, 28060515]

約数ペア:

[(1, 28060515), (3, 9353505), (5, 5612103), (7, 4008645), (9, 3117835), (15, 1870701), (21, 1336215), (35, 801729), (45, 623567), (63, 445405), (105, 267243), (229, 122535), (315, 89081), (389, 72135), (687, 40845), (1145, 24507), (1167, 24045), (1603, 17505), (1945, 14427), (2061, 13615), (2723, 10305), (3435, 8169), (3501, 8015), (4809, 5835)]