68796728

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 128

約数和(自身を含む): 177085440

約数和(自身を除く): 108288712

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 71, 77, 88, 91, 104, 121, 142, 143, 154, 182, 242, 284, 286, 308, 364, 484, 497, 568, 572, 616, 728, 781, 847, 923, 968, 994, 1001, 1144, 1331, 1562, 1573, 1694, 1846, 1988, 2002, 2662, 3124, 3146, 3388, 3692, 3976, 4004, 5324, 5467, 6248, 6292, 6461, 6776, 7384, 8008, 8591, 9317, 10153, 10648, 10934, 11011, 12584, 12922, 17182, 17303, 18634, 20306, 21868, 22022, 25844, 34364, 34606, 37268, 40612, 43736, 44044, 51688, 60137, 68728, 69212, 71071, 74536, 81224, 88088, 94501, 111683, 120274, 121121, 138424, 142142, 189002, 223366, 240548, 242242, 284284, 378004, 446732, 481096, 484484, 568568, 661507, 756008, 781781, 893464, 968968, 1228513, 1323014, 1563562, 2457026, 2646028, 3127124, 4914052, 5292056, 6254248, 8599591, 9828104, 17199182, 34398364, 68796728]

約数ペア:

[(1, 68796728), (2, 34398364), (4, 17199182), (7, 9828104), (8, 8599591), (11, 6254248), (13, 5292056), (14, 4914052), (22, 3127124), (26, 2646028), (28, 2457026), (44, 1563562), (52, 1323014), (56, 1228513), (71, 968968), (77, 893464), (88, 781781), (91, 756008), (104, 661507), (121, 568568), (142, 484484), (143, 481096), (154, 446732), (182, 378004), (242, 284284), (284, 242242), (286, 240548), (308, 223366), (364, 189002), (484, 142142), (497, 138424), (568, 121121), (572, 120274), (616, 111683), (728, 94501), (781, 88088), (847, 81224), (923, 74536), (968, 71071), (994, 69212), (1001, 68728), (1144, 60137), (1331, 51688), (1562, 44044), (1573, 43736), (1694, 40612), (1846, 37268), (1988, 34606), (2002, 34364), (2662, 25844), (3124, 22022), (3146, 21868), (3388, 20306), (3692, 18634), (3976, 17303), (4004, 17182), (5324, 12922), (5467, 12584), (6248, 11011), (6292, 10934), (6461, 10648), (6776, 10153), (7384, 9317), (8008, 8591)]