256437456

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15667}}^1$

素因数の和:15720

約数の個数: 80

約数和(自身を含む): 746047488

約数和(自身を除く): 489610032

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 31, 33, 44, 48, 62, 66, 88, 93, 124, 132, 176, 186, 248, 264, 341, 372, 496, 528, 682, 744, 1023, 1364, 1488, 2046, 2728, 4092, 5456, 8184, 15667, 16368, 31334, 47001, 62668, 94002, 125336, 172337, 188004, 250672, 344674, 376008, 485677, 517011, 689348, 752016, 971354, 1034022, 1378696, 1457031, 1942708, 2068044, 2757392, 2914062, 3885416, 4136088, 5342447, 5828124, 7770832, 8272176, 10684894, 11656248, 16027341, 21369788, 23312496, 32054682, 42739576, 64109364, 85479152, 128218728, 256437456]

約数ペア:

[(1, 256437456), (2, 128218728), (3, 85479152), (4, 64109364), (6, 42739576), (8, 32054682), (11, 23312496), (12, 21369788), (16, 16027341), (22, 11656248), (24, 10684894), (31, 8272176), (33, 7770832), (44, 5828124), (48, 5342447), (62, 4136088), (66, 3885416), (88, 2914062), (93, 2757392), (124, 2068044), (132, 1942708), (176, 1457031), (186, 1378696), (248, 1034022), (264, 971354), (341, 752016), (372, 689348), (496, 517011), (528, 485677), (682, 376008), (744, 344674), (1023, 250672), (1364, 188004), (1488, 172337), (2046, 125336), (2728, 94002), (4092, 62668), (5456, 47001), (8184, 31334), (15667, 16368)]