81360120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21871}}^1$

素因数の和:21916

約数の個数: 64

約数和(自身を含む): 251965440

約数和(自身を除く): 170605320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 21871, 43742, 65613, 87484, 109355, 131226, 174968, 218710, 262452, 328065, 437420, 524904, 656130, 678001, 874840, 1312260, 1356002, 2034003, 2624520, 2712004, 3390005, 4068006, 5424008, 6780010, 8136012, 10170015, 13560020, 16272024, 20340030, 27120040, 40680060, 81360120]

約数ペア:

[(1, 81360120), (2, 40680060), (3, 27120040), (4, 20340030), (5, 16272024), (6, 13560020), (8, 10170015), (10, 8136012), (12, 6780010), (15, 5424008), (20, 4068006), (24, 3390005), (30, 2712004), (31, 2624520), (40, 2034003), (60, 1356002), (62, 1312260), (93, 874840), (120, 678001), (124, 656130), (155, 524904), (186, 437420), (248, 328065), (310, 262452), (372, 218710), (465, 174968), (620, 131226), (744, 109355), (930, 87484), (1240, 65613), (1860, 43742), (3720, 21871)]