661212864

素因数分解:

$2^6\times 3^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:647

約数の個数: 168

約数和(自身を含む): 2055296880

約数和(自身を除く): 1394084016

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 144, 156, 192, 208, 227, 234, 288, 312, 389, 416, 454, 468, 576, 624, 681, 778, 832, 908, 936, 1167, 1248, 1362, 1556, 1816, 1872, 2043, 2334, 2496, 2724, 2951, 3112, 3501, 3632, 3744, 4086, 4668, 5057, 5448, 5902, 6224, 7002, 7264, 7488, 8172, 8853, 9336, 10114, 10896, 11804, 12448, 14004, 14528, 15171, 16344, 17706, 18672, 20228, 21792, 23608, 24896, 26559, 28008, 30342, 32688, 35412, 37344, 40456, 43584, 45513, 47216, 53118, 56016, 60684, 65376, 70824, 74688, 80912, 88303, 91026, 94432, 106236, 112032, 121368, 130752, 141648, 161824, 176606, 182052, 188864, 212472, 224064, 242736, 264909, 283296, 323648, 353212, 364104, 424944, 485472, 529818, 566592, 706424, 728208, 794727, 849888, 970944, 1059636, 1147939, 1412848, 1456416, 1589454, 1699776, 2119272, 2295878, 2825696, 2912832, 3178908, 3443817, 4238544, 4591756, 5651392, 6357816, 6887634, 8477088, 9183512, 10331451, 12715632, 13775268, 16954176, 18367024, 20662902, 25431264, 27550536, 36734048, 41325804, 50862528, 55101072, 73468096, 82651608, 110202144, 165303216, 220404288, 330606432, 661212864]

約数ペア:

[(1, 661212864), (2, 330606432), (3, 220404288), (4, 165303216), (6, 110202144), (8, 82651608), (9, 73468096), (12, 55101072), (13, 50862528), (16, 41325804), (18, 36734048), (24, 27550536), (26, 25431264), (32, 20662902), (36, 18367024), (39, 16954176), (48, 13775268), (52, 12715632), (64, 10331451), (72, 9183512), (78, 8477088), (96, 6887634), (104, 6357816), (117, 5651392), (144, 4591756), (156, 4238544), (192, 3443817), (208, 3178908), (227, 2912832), (234, 2825696), (288, 2295878), (312, 2119272), (389, 1699776), (416, 1589454), (454, 1456416), (468, 1412848), (576, 1147939), (624, 1059636), (681, 970944), (778, 849888), (832, 794727), (908, 728208), (936, 706424), (1167, 566592), (1248, 529818), (1362, 485472), (1556, 424944), (1816, 364104), (1872, 353212), (2043, 323648), (2334, 283296), (2496, 264909), (2724, 242736), (2951, 224064), (3112, 212472), (3501, 188864), (3632, 182052), (3744, 176606), (4086, 161824), (4668, 141648), (5057, 130752), (5448, 121368), (5902, 112032), (6224, 106236), (7002, 94432), (7264, 91026), (7488, 88303), (8172, 80912), (8853, 74688), (9336, 70824), (10114, 65376), (10896, 60684), (11804, 56016), (12448, 53118), (14004, 47216), (14528, 45513), (15171, 43584), (16344, 40456), (17706, 37344), (18672, 35412), (20228, 32688), (21792, 30342), (23608, 28008), (24896, 26559)]