67890555

素因数分解:

$3^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 123911424

約数和(自身を除く): 56020869

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 243, 355, 405, 639, 787, 1065, 1215, 1917, 2361, 3195, 3935, 5751, 7083, 9585, 11805, 17253, 21249, 28755, 35415, 55877, 63747, 86265, 106245, 167631, 191241, 279385, 318735, 502893, 838155, 956205, 1508679, 2514465, 4526037, 7543395, 13578111, 22630185, 67890555]

約数ペア:

[(1, 67890555), (3, 22630185), (5, 13578111), (9, 7543395), (15, 4526037), (27, 2514465), (45, 1508679), (71, 956205), (81, 838155), (135, 502893), (213, 318735), (243, 279385), (355, 191241), (405, 167631), (639, 106245), (787, 86265), (1065, 63747), (1215, 55877), (1917, 35415), (2361, 28755), (3195, 21249), (3935, 17253), (5751, 11805), (7083, 9585)]