257841402

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{6469}}^1$

素因数の和:6567

約数の個数: 64

約数和(自身を含む): 643480320

約数和(自身を除く): 385638918

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 73, 78, 91, 146, 182, 219, 273, 438, 511, 546, 949, 1022, 1533, 1898, 2847, 3066, 5694, 6469, 6643, 12938, 13286, 19407, 19929, 38814, 39858, 45283, 84097, 90566, 135849, 168194, 252291, 271698, 472237, 504582, 588679, 944474, 1177358, 1416711, 1766037, 2833422, 3305659, 3532074, 6139081, 6611318, 9916977, 12278162, 18417243, 19833954, 36834486, 42973567, 85947134, 128920701, 257841402]

約数ペア:

[(1, 257841402), (2, 128920701), (3, 85947134), (6, 42973567), (7, 36834486), (13, 19833954), (14, 18417243), (21, 12278162), (26, 9916977), (39, 6611318), (42, 6139081), (73, 3532074), (78, 3305659), (91, 2833422), (146, 1766037), (182, 1416711), (219, 1177358), (273, 944474), (438, 588679), (511, 504582), (546, 472237), (949, 271698), (1022, 252291), (1533, 168194), (1898, 135849), (2847, 90566), (3066, 84097), (5694, 45283), (6469, 39858), (6643, 38814), (12938, 19929), (13286, 19407)]