28017800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4519}}^1$

素因数の和:4566

約数の個数: 48

約数和(自身を含む): 67257600

約数和(自身を除く): 39239800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 4519, 6200, 9038, 18076, 22595, 36152, 45190, 90380, 112975, 140089, 180760, 225950, 280178, 451900, 560356, 700445, 903800, 1120712, 1400890, 2801780, 3502225, 5603560, 7004450, 14008900, 28017800]

約数ペア:

[(1, 28017800), (2, 14008900), (4, 7004450), (5, 5603560), (8, 3502225), (10, 2801780), (20, 1400890), (25, 1120712), (31, 903800), (40, 700445), (50, 560356), (62, 451900), (100, 280178), (124, 225950), (155, 180760), (200, 140089), (248, 112975), (310, 90380), (620, 45190), (775, 36152), (1240, 22595), (1550, 18076), (3100, 9038), (4519, 6200)]