20580768

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:291

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45463392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 23, 24, 26, 32, 36, 39, 46, 48, 52, 69, 72, 78, 92, 96, 104, 117, 138, 144, 156, 184, 207, 208, 234, 239, 276, 288, 299, 312, 368, 414, 416, 468, 478, 552, 598, 624, 717, 736, 828, 897, 936, 956, 1104, 1196, 1248, 1434, 1656, 1794, 1872, 1912, 2151, 2208, 2392, 2691, 2868, 3107, 3312, 3588, 3744, 3824, 4302, 4784, 5382, 5497, 5736, 6214, 6624, 7176, 7648, 8604, 9321, 9568, 10764, 10994, 11472, 12428, 14352, 16491, 17208, 18642, 21528, 21988, 22944, 24856, 27963, 28704, 32982, 34416, 37284, 43056, 43976, 49473, 49712, 55926, 65964, 68832, 71461, 74568, 86112, 87952, 98946, 99424, 111852, 131928, 142922, 149136, 175904, 197892, 214383, 223704, 263856, 285844, 298272, 395784, 428766, 447408, 527712, 571688, 643149, 791568, 857532, 894816, 1143376, 1286298, 1583136, 1715064, 2286752, 2572596, 3430128, 5145192, 6860256, 10290384, 20580768]

約数ペア:

[(1, 20580768), (2, 10290384), (3, 6860256), (4, 5145192), (6, 3430128), (8, 2572596), (9, 2286752), (12, 1715064), (13, 1583136), (16, 1286298), (18, 1143376), (23, 894816), (24, 857532), (26, 791568), (32, 643149), (36, 571688), (39, 527712), (46, 447408), (48, 428766), (52, 395784), (69, 298272), (72, 285844), (78, 263856), (92, 223704), (96, 214383), (104, 197892), (117, 175904), (138, 149136), (144, 142922), (156, 131928), (184, 111852), (207, 99424), (208, 98946), (234, 87952), (239, 86112), (276, 74568), (288, 71461), (299, 68832), (312, 65964), (368, 55926), (414, 49712), (416, 49473), (468, 43976), (478, 43056), (552, 37284), (598, 34416), (624, 32982), (717, 28704), (736, 27963), (828, 24856), (897, 22944), (936, 21988), (956, 21528), (1104, 18642), (1196, 17208), (1248, 16491), (1434, 14352), (1656, 12428), (1794, 11472), (1872, 10994), (1912, 10764), (2151, 9568), (2208, 9321), (2392, 8604), (2691, 7648), (2868, 7176), (3107, 6624), (3312, 6214), (3588, 5736), (3744, 5497), (3824, 5382), (4302, 4784)]