15665978025

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{19081}}^1$

素因数の和:19227

約数の個数: 72

約数和(自身を含む): 29068373880

約数和(自身を除く): 13402395855

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 89, 123, 205, 225, 267, 369, 445, 615, 801, 1025, 1335, 1845, 2225, 3075, 3649, 4005, 6675, 9225, 10947, 18245, 19081, 20025, 32841, 54735, 57243, 91225, 95405, 164205, 171729, 273675, 286215, 477025, 782321, 821025, 858645, 1431075, 1698209, 2346963, 3911605, 4293225, 5094627, 7040889, 8491045, 11734815, 15283881, 19558025, 25473135, 35204445, 42455225, 58674075, 69626569, 76419405, 127365675, 176022225, 208879707, 348132845, 382097025, 626639121, 1044398535, 1740664225, 3133195605, 5221992675, 15665978025]

約数ペア:

[(1, 15665978025), (3, 5221992675), (5, 3133195605), (9, 1740664225), (15, 1044398535), (25, 626639121), (41, 382097025), (45, 348132845), (75, 208879707), (89, 176022225), (123, 127365675), (205, 76419405), (225, 69626569), (267, 58674075), (369, 42455225), (445, 35204445), (615, 25473135), (801, 19558025), (1025, 15283881), (1335, 11734815), (1845, 8491045), (2225, 7040889), (3075, 5094627), (3649, 4293225), (4005, 3911605), (6675, 2346963), (9225, 1698209), (10947, 1431075), (18245, 858645), (19081, 821025), (20025, 782321), (32841, 477025), (54735, 286215), (57243, 273675), (91225, 171729), (95405, 164205)]