27757575

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 53905280

約数和(自身を除く): 26147705

約数列:

[1, 3, 5, 9, 15, 19, 25, 43, 45, 57, 75, 95, 129, 151, 171, 215, 225, 285, 387, 453, 475, 645, 755, 817, 855, 1075, 1359, 1425, 1935, 2265, 2451, 2869, 3225, 3775, 4085, 4275, 6493, 6795, 7353, 8607, 9675, 11325, 12255, 14345, 19479, 20425, 25821, 32465, 33975, 36765, 43035, 58437, 61275, 71725, 97395, 123367, 129105, 162325, 183825, 215175, 292185, 370101, 486975, 616835, 645525, 1110303, 1460925, 1850505, 3084175, 5551515, 9252525, 27757575]

約数ペア:

[(1, 27757575), (3, 9252525), (5, 5551515), (9, 3084175), (15, 1850505), (19, 1460925), (25, 1110303), (43, 645525), (45, 616835), (57, 486975), (75, 370101), (95, 292185), (129, 215175), (151, 183825), (171, 162325), (215, 129105), (225, 123367), (285, 97395), (387, 71725), (453, 61275), (475, 58437), (645, 43035), (755, 36765), (817, 33975), (855, 32465), (1075, 25821), (1359, 20425), (1425, 19479), (1935, 14345), (2265, 12255), (2451, 11325), (2869, 9675), (3225, 8607), (3775, 7353), (4085, 6795), (4275, 6493)]