278410122

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2351}}^1$

素因数の和:2425

約数の個数: 80

約数和(自身を含む): 676190592

約数和(自身を除く): 397780470

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 43, 51, 54, 81, 86, 102, 129, 153, 162, 258, 306, 387, 459, 731, 774, 918, 1161, 1377, 1462, 2193, 2322, 2351, 2754, 3483, 4386, 4702, 6579, 6966, 7053, 13158, 14106, 19737, 21159, 39474, 39967, 42318, 59211, 63477, 79934, 101093, 118422, 119901, 126954, 190431, 202186, 239802, 303279, 359703, 380862, 606558, 719406, 909837, 1079109, 1718581, 1819674, 2158218, 2729511, 3237327, 3437162, 5155743, 5459022, 6474654, 8188533, 10311486, 15467229, 16377066, 30934458, 46401687, 92803374, 139205061, 278410122]

約数ペア:

[(1, 278410122), (2, 139205061), (3, 92803374), (6, 46401687), (9, 30934458), (17, 16377066), (18, 15467229), (27, 10311486), (34, 8188533), (43, 6474654), (51, 5459022), (54, 5155743), (81, 3437162), (86, 3237327), (102, 2729511), (129, 2158218), (153, 1819674), (162, 1718581), (258, 1079109), (306, 909837), (387, 719406), (459, 606558), (731, 380862), (774, 359703), (918, 303279), (1161, 239802), (1377, 202186), (1462, 190431), (2193, 126954), (2322, 119901), (2351, 118422), (2754, 101093), (3483, 79934), (4386, 63477), (4702, 59211), (6579, 42318), (6966, 39967), (7053, 39474), (13158, 21159), (14106, 19737)]