81920865

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 146990592

約数和(自身を除く): 65069727

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 71, 97, 183, 195, 213, 291, 305, 355, 485, 793, 915, 923, 1065, 1261, 1455, 2379, 2769, 3783, 3965, 4331, 4615, 5917, 6305, 6887, 11895, 12993, 13845, 17751, 18915, 20661, 21655, 29585, 34435, 56303, 64965, 76921, 88755, 89531, 103305, 168909, 230763, 268593, 281515, 384605, 420107, 447655, 844545, 1153815, 1260321, 1342965, 2100535, 5461391, 6301605, 16384173, 27306955, 81920865]

約数ペア:

[(1, 81920865), (3, 27306955), (5, 16384173), (13, 6301605), (15, 5461391), (39, 2100535), (61, 1342965), (65, 1260321), (71, 1153815), (97, 844545), (183, 447655), (195, 420107), (213, 384605), (291, 281515), (305, 268593), (355, 230763), (485, 168909), (793, 103305), (915, 89531), (923, 88755), (1065, 76921), (1261, 64965), (1455, 56303), (2379, 34435), (2769, 29585), (3783, 21655), (3965, 20661), (4331, 18915), (4615, 17751), (5917, 13845), (6305, 12993), (6887, 11895)]