208748228975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{709}}^1\times {\mathrm{7487}}^1$

素因数の和:8241

約数の個数: 72

約数和(自身を含む): 306877858560

約数和(自身を除く): 98129629585

約数列:

[1, 5, 11, 13, 25, 55, 65, 121, 143, 275, 325, 605, 709, 715, 1573, 3025, 3545, 3575, 7487, 7799, 7865, 9217, 17725, 37435, 38995, 39325, 46085, 82357, 85789, 97331, 101387, 187175, 194975, 230425, 411785, 428945, 486655, 506935, 905927, 1070641, 1115257, 2058925, 2144725, 2433275, 2534675, 4529635, 5308283, 5353205, 5576285, 11777051, 22648175, 26541415, 26766025, 27881425, 58391113, 58885255, 69007679, 132707075, 291955565, 294426275, 345038395, 642302243, 759084469, 1459777825, 1725191975, 3211511215, 3795422345, 8349929159, 16057556075, 18977111725, 41749645795, 208748228975]

約数ペア:

[(1, 208748228975), (5, 41749645795), (11, 18977111725), (13, 16057556075), (25, 8349929159), (55, 3795422345), (65, 3211511215), (121, 1725191975), (143, 1459777825), (275, 759084469), (325, 642302243), (605, 345038395), (709, 294426275), (715, 291955565), (1573, 132707075), (3025, 69007679), (3545, 58885255), (3575, 58391113), (7487, 27881425), (7799, 26766025), (7865, 26541415), (9217, 22648175), (17725, 11777051), (37435, 5576285), (38995, 5353205), (39325, 5308283), (46085, 4529635), (82357, 2534675), (85789, 2433275), (97331, 2144725), (101387, 2058925), (187175, 1115257), (194975, 1070641), (230425, 905927), (411785, 506935), (428945, 486655)]