1389005840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{560083}}^1$

素因数の和:560127

約数の個数: 40

約数和(自身を含む): 3333619968

約数和(自身を除く): 1944614128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 560083, 1120166, 2240332, 2800415, 4480664, 5600830, 8961328, 11201660, 17362573, 22403320, 34725146, 44806640, 69450292, 86812865, 138900584, 173625730, 277801168, 347251460, 694502920, 1389005840]

約数ペア:

[(1, 1389005840), (2, 694502920), (4, 347251460), (5, 277801168), (8, 173625730), (10, 138900584), (16, 86812865), (20, 69450292), (31, 44806640), (40, 34725146), (62, 22403320), (80, 17362573), (124, 11201660), (155, 8961328), (248, 5600830), (310, 4480664), (496, 2800415), (620, 2240332), (1240, 1120166), (2480, 560083)]