227978245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 341832960

約数和(自身を除く): 113854715

約数列:

[1, 5, 11, 17, 19, 41, 55, 85, 95, 187, 205, 209, 313, 323, 451, 697, 779, 935, 1045, 1565, 1615, 2255, 3443, 3485, 3553, 3895, 5321, 5947, 7667, 8569, 12833, 13243, 17215, 17765, 26605, 29735, 38335, 42845, 58531, 64165, 65417, 66215, 101099, 141163, 145673, 218161, 243827, 292655, 327085, 505495, 705815, 728365, 1090805, 1112089, 1219135, 2399771, 2682097, 4145059, 5560445, 11998855, 13410485, 20725295, 45595649, 227978245]

約数ペア:

[(1, 227978245), (5, 45595649), (11, 20725295), (17, 13410485), (19, 11998855), (41, 5560445), (55, 4145059), (85, 2682097), (95, 2399771), (187, 1219135), (205, 1112089), (209, 1090805), (313, 728365), (323, 705815), (451, 505495), (697, 327085), (779, 292655), (935, 243827), (1045, 218161), (1565, 145673), (1615, 141163), (2255, 101099), (3443, 66215), (3485, 65417), (3553, 64165), (3895, 58531), (5321, 42845), (5947, 38335), (7667, 29735), (8569, 26605), (12833, 17765), (13243, 17215)]