28756065

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 52641792

約数和(自身を除く): 23885727

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 67, 71, 93, 155, 195, 201, 213, 335, 355, 403, 465, 871, 923, 1005, 1065, 1209, 2015, 2077, 2201, 2613, 2769, 4355, 4615, 4757, 6045, 6231, 6603, 10385, 11005, 13065, 13845, 14271, 23785, 27001, 28613, 31155, 33015, 61841, 71355, 81003, 85839, 135005, 143065, 147467, 185523, 309205, 405015, 429195, 442401, 737335, 927615, 1917071, 2212005, 5751213, 9585355, 28756065]

約数ペア:

[(1, 28756065), (3, 9585355), (5, 5751213), (13, 2212005), (15, 1917071), (31, 927615), (39, 737335), (65, 442401), (67, 429195), (71, 405015), (93, 309205), (155, 185523), (195, 147467), (201, 143065), (213, 135005), (335, 85839), (355, 81003), (403, 71355), (465, 61841), (871, 33015), (923, 31155), (1005, 28613), (1065, 27001), (1209, 23785), (2015, 14271), (2077, 13845), (2201, 13065), (2613, 11005), (2769, 10385), (4355, 6603), (4615, 6231), (4757, 6045)]