7820955

素因数分解:

$3^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 14493024

約数和(自身を除く): 6672069

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 81, 123, 135, 157, 205, 243, 369, 405, 471, 615, 785, 1107, 1215, 1413, 1845, 2355, 3321, 4239, 5535, 6437, 7065, 9963, 12717, 16605, 19311, 21195, 32185, 38151, 49815, 57933, 63585, 96555, 173799, 190755, 289665, 521397, 868995, 1564191, 2606985, 7820955]

約数ペア:

[(1, 7820955), (3, 2606985), (5, 1564191), (9, 868995), (15, 521397), (27, 289665), (41, 190755), (45, 173799), (81, 96555), (123, 63585), (135, 57933), (157, 49815), (205, 38151), (243, 32185), (369, 21195), (405, 19311), (471, 16605), (615, 12717), (785, 9963), (1107, 7065), (1215, 6437), (1413, 5535), (1845, 4239), (2355, 3321)]