71854280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{57947}}^1$

素因数の和:57989

約数の個数: 32

約数和(自身を含む): 166890240

約数和(自身を除く): 95035960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 57947, 115894, 231788, 289735, 463576, 579470, 1158940, 1796357, 2317880, 3592714, 7185428, 8981785, 14370856, 17963570, 35927140, 71854280]

約数ペア:

[(1, 71854280), (2, 35927140), (4, 17963570), (5, 14370856), (8, 8981785), (10, 7185428), (20, 3592714), (31, 2317880), (40, 1796357), (62, 1158940), (124, 579470), (155, 463576), (248, 289735), (310, 231788), (620, 115894), (1240, 57947)]