81689302149

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{260879}}^1$

素因数の和:260970

約数の個数: 64

約数和(自身を含む): 142119075840

約数和(自身を除く): 60429773691

約数列:

[1, 3, 7, 13, 21, 31, 37, 39, 91, 93, 111, 217, 259, 273, 403, 481, 651, 777, 1147, 1209, 1443, 2821, 3367, 3441, 8029, 8463, 10101, 14911, 24087, 44733, 104377, 260879, 313131, 782637, 1826153, 3391427, 5478459, 8087249, 9652523, 10174281, 23739989, 24261747, 28957569, 56610743, 67567661, 71219967, 105134237, 125482799, 169832229, 202702983, 299228213, 315402711, 376448397, 735939659, 878379593, 897684639, 2094597491, 2207818977, 2635138779, 3889966769, 6283792473, 11669900307, 27229767383, 81689302149]

約数ペア:

[(1, 81689302149), (3, 27229767383), (7, 11669900307), (13, 6283792473), (21, 3889966769), (31, 2635138779), (37, 2207818977), (39, 2094597491), (91, 897684639), (93, 878379593), (111, 735939659), (217, 376448397), (259, 315402711), (273, 299228213), (403, 202702983), (481, 169832229), (651, 125482799), (777, 105134237), (1147, 71219967), (1209, 67567661), (1443, 56610743), (2821, 28957569), (3367, 24261747), (3441, 23739989), (8029, 10174281), (8463, 9652523), (10101, 8087249), (14911, 5478459), (24087, 3391427), (44733, 1826153), (104377, 782637), (260879, 313131)]