13439120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5419}}^1$

素因数の和:5463

約数の個数: 40

約数和(自身を含む): 32259840

約数和(自身を除く): 18820720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5419, 10838, 21676, 27095, 43352, 54190, 86704, 108380, 167989, 216760, 335978, 433520, 671956, 839945, 1343912, 1679890, 2687824, 3359780, 6719560, 13439120]

約数ペア:

[(1, 13439120), (2, 6719560), (4, 3359780), (5, 2687824), (8, 1679890), (10, 1343912), (16, 839945), (20, 671956), (31, 433520), (40, 335978), (62, 216760), (80, 167989), (124, 108380), (155, 86704), (248, 54190), (310, 43352), (496, 27095), (620, 21676), (1240, 10838), (2480, 5419)]