28655600

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1009}}^1$

素因数の和:1098

約数の個数: 60

約数和(自身を含む): 69883920

約数和(自身を除く): 41228320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 200, 284, 355, 400, 568, 710, 1009, 1136, 1420, 1775, 2018, 2840, 3550, 4036, 5045, 5680, 7100, 8072, 10090, 14200, 16144, 20180, 25225, 28400, 40360, 50450, 71639, 80720, 100900, 143278, 201800, 286556, 358195, 403600, 573112, 716390, 1146224, 1432780, 1790975, 2865560, 3581950, 5731120, 7163900, 14327800, 28655600]

約数ペア:

[(1, 28655600), (2, 14327800), (4, 7163900), (5, 5731120), (8, 3581950), (10, 2865560), (16, 1790975), (20, 1432780), (25, 1146224), (40, 716390), (50, 573112), (71, 403600), (80, 358195), (100, 286556), (142, 201800), (200, 143278), (284, 100900), (355, 80720), (400, 71639), (568, 50450), (710, 40360), (1009, 28400), (1136, 25225), (1420, 20180), (1775, 16144), (2018, 14200), (2840, 10090), (3550, 8072), (4036, 7100), (5045, 5680)]