91986890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 180652032

約数和(自身を除く): 88665142

約数列:

[1, 2, 5, 10, 23, 43, 46, 71, 86, 115, 131, 142, 215, 230, 262, 355, 430, 655, 710, 989, 1310, 1633, 1978, 3013, 3053, 3266, 4945, 5633, 6026, 6106, 8165, 9301, 9890, 11266, 15065, 15265, 16330, 18602, 28165, 30130, 30530, 46505, 56330, 70219, 93010, 129559, 140438, 213923, 259118, 351095, 399943, 427846, 647795, 702190, 799886, 1069615, 1295590, 1999715, 2139230, 3999430, 9198689, 18397378, 45993445, 91986890]

約数ペア:

[(1, 91986890), (2, 45993445), (5, 18397378), (10, 9198689), (23, 3999430), (43, 2139230), (46, 1999715), (71, 1295590), (86, 1069615), (115, 799886), (131, 702190), (142, 647795), (215, 427846), (230, 399943), (262, 351095), (355, 259118), (430, 213923), (655, 140438), (710, 129559), (989, 93010), (1310, 70219), (1633, 56330), (1978, 46505), (3013, 30530), (3053, 30130), (3266, 28165), (4945, 18602), (5633, 16330), (6026, 15265), (6106, 15065), (8165, 11266), (9301, 9890)]