256768330

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{233}}^1$

素因数の和:440

約数の個数: 96

約数和(自身を含む): 584844624

約数和(自身を除く): 328076294

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 173, 182, 233, 245, 346, 455, 466, 490, 637, 865, 910, 1165, 1211, 1274, 1631, 1730, 2249, 2330, 2422, 3029, 3185, 3262, 4498, 6055, 6058, 6370, 8155, 8477, 11245, 11417, 12110, 15145, 15743, 16310, 16954, 21203, 22490, 22834, 30290, 31486, 40309, 42385, 42406, 57085, 78715, 80618, 84770, 106015, 110201, 114170, 148421, 157430, 201545, 212030, 220402, 282163, 296842, 403090, 524017, 551005, 564326, 742105, 1048034, 1102010, 1410815, 1484210, 1975141, 2620085, 2821630, 3668119, 3950282, 5240170, 7336238, 9875705, 18340595, 19751410, 25676833, 36681190, 51353666, 128384165, 256768330]

約数ペア:

[(1, 256768330), (2, 128384165), (5, 51353666), (7, 36681190), (10, 25676833), (13, 19751410), (14, 18340595), (26, 9875705), (35, 7336238), (49, 5240170), (65, 3950282), (70, 3668119), (91, 2821630), (98, 2620085), (130, 1975141), (173, 1484210), (182, 1410815), (233, 1102010), (245, 1048034), (346, 742105), (455, 564326), (466, 551005), (490, 524017), (637, 403090), (865, 296842), (910, 282163), (1165, 220402), (1211, 212030), (1274, 201545), (1631, 157430), (1730, 148421), (2249, 114170), (2330, 110201), (2422, 106015), (3029, 84770), (3185, 80618), (3262, 78715), (4498, 57085), (6055, 42406), (6058, 42385), (6370, 40309), (8155, 31486), (8477, 30290), (11245, 22834), (11417, 22490), (12110, 21203), (15145, 16954), (15743, 16310)]