1379500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:139

約数の個数: 48

約数和(自身を含む): 3144960

約数和(自身を除く): 1765460

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 89, 100, 124, 125, 155, 178, 250, 310, 356, 445, 500, 620, 775, 890, 1550, 1780, 2225, 2759, 3100, 3875, 4450, 5518, 7750, 8900, 11036, 11125, 13795, 15500, 22250, 27590, 44500, 55180, 68975, 137950, 275900, 344875, 689750, 1379500]

約数ペア:

[(1, 1379500), (2, 689750), (4, 344875), (5, 275900), (10, 137950), (20, 68975), (25, 55180), (31, 44500), (50, 27590), (62, 22250), (89, 15500), (100, 13795), (124, 11125), (125, 11036), (155, 8900), (178, 7750), (250, 5518), (310, 4450), (356, 3875), (445, 3100), (500, 2759), (620, 2225), (775, 1780), (890, 1550)]