138887440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{56003}}^1$

素因数の和:56047

約数の個数: 40

約数和(自身を含む): 333335808

約数和(自身を除く): 194448368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 56003, 112006, 224012, 280015, 448024, 560030, 896048, 1120060, 1736093, 2240120, 3472186, 4480240, 6944372, 8680465, 13888744, 17360930, 27777488, 34721860, 69443720, 138887440]

約数ペア:

[(1, 138887440), (2, 69443720), (4, 34721860), (5, 27777488), (8, 17360930), (10, 13888744), (16, 8680465), (20, 6944372), (31, 4480240), (40, 3472186), (62, 2240120), (80, 1736093), (124, 1120060), (155, 896048), (248, 560030), (310, 448024), (496, 280015), (620, 224012), (1240, 112006), (2480, 56003)]