28219995

素因数分解:

$3^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1181}}^1$

素因数の和:1257

約数の個数: 40

約数和(自身を含む): 51487920

約数和(自身を除く): 23267925

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 81, 135, 177, 295, 405, 531, 885, 1181, 1593, 2655, 3543, 4779, 5905, 7965, 10629, 17715, 23895, 31887, 53145, 69679, 95661, 159435, 209037, 348395, 478305, 627111, 1045185, 1881333, 3135555, 5643999, 9406665, 28219995]

約数ペア:

[(1, 28219995), (3, 9406665), (5, 5643999), (9, 3135555), (15, 1881333), (27, 1045185), (45, 627111), (59, 478305), (81, 348395), (135, 209037), (177, 159435), (295, 95661), (405, 69679), (531, 53145), (885, 31887), (1181, 23895), (1593, 17715), (2655, 10629), (3543, 7965), (4779, 5905)]