400448384

素因数分解:

$2^7\times 7^4\times {\mathrm{1303}}^1$

素因数の和:1345

約数の個数: 80

約数和(自身を含む): 931388520

約数和(自身を除く): 530940136

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 343, 392, 448, 686, 784, 896, 1303, 1372, 1568, 2401, 2606, 2744, 3136, 4802, 5212, 5488, 6272, 9121, 9604, 10424, 10976, 18242, 19208, 20848, 21952, 36484, 38416, 41696, 43904, 63847, 72968, 76832, 83392, 127694, 145936, 153664, 166784, 255388, 291872, 307328, 446929, 510776, 583744, 893858, 1021552, 1167488, 1787716, 2043104, 3128503, 3575432, 4086208, 6257006, 7150864, 8172416, 12514012, 14301728, 25028024, 28603456, 50056048, 57206912, 100112096, 200224192, 400448384]

約数ペア:

[(1, 400448384), (2, 200224192), (4, 100112096), (7, 57206912), (8, 50056048), (14, 28603456), (16, 25028024), (28, 14301728), (32, 12514012), (49, 8172416), (56, 7150864), (64, 6257006), (98, 4086208), (112, 3575432), (128, 3128503), (196, 2043104), (224, 1787716), (343, 1167488), (392, 1021552), (448, 893858), (686, 583744), (784, 510776), (896, 446929), (1303, 307328), (1372, 291872), (1568, 255388), (2401, 166784), (2606, 153664), (2744, 145936), (3136, 127694), (4802, 83392), (5212, 76832), (5488, 72968), (6272, 63847), (9121, 43904), (9604, 41696), (10424, 38416), (10976, 36484), (18242, 21952), (19208, 20848)]