20245545

素因数分解:

$3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{877}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 38351040

約数和(自身を除く): 18105495

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 243, 285, 405, 513, 855, 877, 1215, 1539, 2565, 2631, 4385, 4617, 7695, 7893, 13155, 16663, 23085, 23679, 39465, 49989, 71037, 83315, 118395, 149967, 213111, 249945, 355185, 449901, 749835, 1065555, 1349703, 2249505, 4049109, 6748515, 20245545]

約数ペア:

[(1, 20245545), (3, 6748515), (5, 4049109), (9, 2249505), (15, 1349703), (19, 1065555), (27, 749835), (45, 449901), (57, 355185), (81, 249945), (95, 213111), (135, 149967), (171, 118395), (243, 83315), (285, 71037), (405, 49989), (513, 39465), (855, 23679), (877, 23085), (1215, 16663), (1539, 13155), (2565, 7893), (2631, 7695), (4385, 4617)]