87660015

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 158146560

約数和(自身を除く): 70486545

約数列:

[1, 3, 5, 15, 19, 23, 43, 57, 69, 95, 115, 129, 215, 285, 311, 345, 437, 645, 817, 933, 989, 1311, 1555, 2185, 2451, 2967, 4085, 4665, 4945, 5909, 6555, 7153, 12255, 13373, 14835, 17727, 18791, 21459, 29545, 35765, 40119, 56373, 66865, 88635, 93955, 107295, 135907, 200595, 254087, 281865, 307579, 407721, 679535, 762261, 922737, 1270435, 1537895, 2038605, 3811305, 4613685, 5844001, 17532003, 29220005, 87660015]

約数ペア:

[(1, 87660015), (3, 29220005), (5, 17532003), (15, 5844001), (19, 4613685), (23, 3811305), (43, 2038605), (57, 1537895), (69, 1270435), (95, 922737), (115, 762261), (129, 679535), (215, 407721), (285, 307579), (311, 281865), (345, 254087), (437, 200595), (645, 135907), (817, 107295), (933, 93955), (989, 88635), (1311, 66865), (1555, 56373), (2185, 40119), (2451, 35765), (2967, 29545), (4085, 21459), (4665, 18791), (4945, 17727), (5909, 14835), (6555, 13373), (7153, 12255)]