20048715

素因数分解:

$3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{569}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 37346400

約数和(自身を除く): 17297685

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 243, 261, 405, 435, 569, 783, 1215, 1305, 1707, 2349, 2845, 3915, 5121, 7047, 8535, 11745, 15363, 16501, 25605, 35235, 46089, 49503, 76815, 82505, 138267, 148509, 230445, 247515, 445527, 691335, 742545, 1336581, 2227635, 4009743, 6682905, 20048715]

約数ペア:

[(1, 20048715), (3, 6682905), (5, 4009743), (9, 2227635), (15, 1336581), (27, 742545), (29, 691335), (45, 445527), (81, 247515), (87, 230445), (135, 148509), (145, 138267), (243, 82505), (261, 76815), (405, 49503), (435, 46089), (569, 35235), (783, 25605), (1215, 16501), (1305, 15363), (1707, 11745), (2349, 8535), (2845, 7047), (3915, 5121)]