27287325

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 55517280

約数和(自身を除く): 28229955

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 75, 95, 117, 171, 195, 225, 247, 285, 325, 475, 491, 585, 741, 855, 975, 1235, 1425, 1473, 2223, 2455, 2925, 3705, 4275, 4419, 6175, 6383, 7365, 9329, 11115, 12275, 18525, 19149, 22095, 27987, 31915, 36825, 46645, 55575, 57447, 83961, 95745, 110475, 121277, 139935, 159575, 233225, 287235, 363831, 419805, 478725, 606385, 699675, 1091493, 1436175, 1819155, 2099025, 3031925, 5457465, 9095775, 27287325]

約数ペア:

[(1, 27287325), (3, 9095775), (5, 5457465), (9, 3031925), (13, 2099025), (15, 1819155), (19, 1436175), (25, 1091493), (39, 699675), (45, 606385), (57, 478725), (65, 419805), (75, 363831), (95, 287235), (117, 233225), (171, 159575), (195, 139935), (225, 121277), (247, 110475), (285, 95745), (325, 83961), (475, 57447), (491, 55575), (585, 46645), (741, 36825), (855, 31915), (975, 27987), (1235, 22095), (1425, 19149), (1473, 18525), (2223, 12275), (2455, 11115), (2925, 9329), (3705, 7365), (4275, 6383), (4419, 6175)]