28260760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5839}}^1$

素因数の和:5872

約数の個数: 48

約数和(自身を含む): 69904800

約数和(自身を除く): 41644040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 5839, 11678, 23356, 29195, 46712, 58390, 64229, 116780, 128458, 233560, 256916, 321145, 513832, 642290, 706519, 1284580, 1413038, 2569160, 2826076, 3532595, 5652152, 7065190, 14130380, 28260760]

約数ペア:

[(1, 28260760), (2, 14130380), (4, 7065190), (5, 5652152), (8, 3532595), (10, 2826076), (11, 2569160), (20, 1413038), (22, 1284580), (40, 706519), (44, 642290), (55, 513832), (88, 321145), (110, 256916), (121, 233560), (220, 128458), (242, 116780), (440, 64229), (484, 58390), (605, 46712), (968, 29195), (1210, 23356), (2420, 11678), (4840, 5839)]