287717775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1997}}^1$

素因数の和:2140

約数の個数: 48

約数和(自身を含む): 508387104

約数和(自身を除く): 220669329

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 113, 255, 339, 425, 565, 1275, 1695, 1921, 1997, 2825, 5763, 5991, 8475, 9605, 9985, 28815, 29955, 33949, 48025, 49925, 101847, 144075, 149775, 169745, 225661, 509235, 676983, 848725, 1128305, 2546175, 3384915, 3836237, 5641525, 11508711, 16924575, 19181185, 57543555, 95905925, 287717775]

約数ペア:

[(1, 287717775), (3, 95905925), (5, 57543555), (15, 19181185), (17, 16924575), (25, 11508711), (51, 5641525), (75, 3836237), (85, 3384915), (113, 2546175), (255, 1128305), (339, 848725), (425, 676983), (565, 509235), (1275, 225661), (1695, 169745), (1921, 149775), (1997, 144075), (2825, 101847), (5763, 49925), (5991, 48025), (8475, 33949), (9605, 29955), (9985, 28815)]