20878704

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{269}}^1$

素因数の和:308

約数の個数: 180

約数和(自身を含む): 74426040

約数和(自身を除く): 53547336

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 33, 36, 42, 44, 48, 49, 56, 63, 66, 72, 77, 84, 88, 98, 99, 112, 126, 132, 144, 147, 154, 168, 176, 196, 198, 231, 252, 264, 269, 294, 308, 336, 392, 396, 441, 462, 504, 528, 538, 539, 588, 616, 693, 784, 792, 807, 882, 924, 1008, 1076, 1078, 1176, 1232, 1386, 1584, 1614, 1617, 1764, 1848, 1883, 2152, 2156, 2352, 2421, 2772, 2959, 3228, 3234, 3528, 3696, 3766, 4304, 4312, 4842, 4851, 5544, 5649, 5918, 6456, 6468, 7056, 7532, 8624, 8877, 9684, 9702, 11088, 11298, 11836, 12912, 12936, 13181, 15064, 16947, 17754, 19368, 19404, 20713, 22596, 23672, 25872, 26362, 26631, 30128, 33894, 35508, 38736, 38808, 39543, 41426, 45192, 47344, 52724, 53262, 62139, 67788, 71016, 77616, 79086, 82852, 90384, 105448, 106524, 118629, 124278, 135576, 142032, 144991, 158172, 165704, 186417, 210896, 213048, 237258, 248556, 271152, 289982, 316344, 331408, 372834, 426096, 434973, 474516, 497112, 579964, 632688, 745668, 869946, 949032, 994224, 1159928, 1304919, 1491336, 1739892, 1898064, 2319856, 2609838, 2982672, 3479784, 5219676, 6959568, 10439352, 20878704]

約数ペア:

[(1, 20878704), (2, 10439352), (3, 6959568), (4, 5219676), (6, 3479784), (7, 2982672), (8, 2609838), (9, 2319856), (11, 1898064), (12, 1739892), (14, 1491336), (16, 1304919), (18, 1159928), (21, 994224), (22, 949032), (24, 869946), (28, 745668), (33, 632688), (36, 579964), (42, 497112), (44, 474516), (48, 434973), (49, 426096), (56, 372834), (63, 331408), (66, 316344), (72, 289982), (77, 271152), (84, 248556), (88, 237258), (98, 213048), (99, 210896), (112, 186417), (126, 165704), (132, 158172), (144, 144991), (147, 142032), (154, 135576), (168, 124278), (176, 118629), (196, 106524), (198, 105448), (231, 90384), (252, 82852), (264, 79086), (269, 77616), (294, 71016), (308, 67788), (336, 62139), (392, 53262), (396, 52724), (441, 47344), (462, 45192), (504, 41426), (528, 39543), (538, 38808), (539, 38736), (588, 35508), (616, 33894), (693, 30128), (784, 26631), (792, 26362), (807, 25872), (882, 23672), (924, 22596), (1008, 20713), (1076, 19404), (1078, 19368), (1176, 17754), (1232, 16947), (1386, 15064), (1584, 13181), (1614, 12936), (1617, 12912), (1764, 11836), (1848, 11298), (1883, 11088), (2152, 9702), (2156, 9684), (2352, 8877), (2421, 8624), (2772, 7532), (2959, 7056), (3228, 6468), (3234, 6456), (3528, 5918), (3696, 5649), (3766, 5544), (4304, 4851), (4312, 4842)]