399446656

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:322

約数の個数: 128

約数和(自身を含む): 956482560

約数和(自身を除く): 557035904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 73, 112, 124, 128, 146, 197, 217, 224, 248, 292, 394, 434, 448, 496, 511, 584, 788, 868, 896, 992, 1022, 1168, 1379, 1576, 1736, 1984, 2044, 2263, 2336, 2758, 3152, 3472, 3968, 4088, 4526, 4672, 5516, 6107, 6304, 6944, 8176, 9052, 9344, 11032, 12214, 12608, 13888, 14381, 15841, 16352, 18104, 22064, 24428, 25216, 27776, 28762, 31682, 32704, 36208, 42749, 44128, 48856, 57524, 63364, 65408, 72416, 85498, 88256, 97712, 100667, 115048, 126728, 144832, 170996, 176512, 195424, 201334, 230096, 253456, 289664, 341992, 390848, 402668, 445811, 460192, 506912, 683984, 781696, 805336, 891622, 920384, 1013824, 1367968, 1610672, 1783244, 1840768, 2027648, 2735936, 3120677, 3221344, 3566488, 5471872, 6241354, 6442688, 7132976, 12482708, 12885376, 14265952, 24965416, 28531904, 49930832, 57063808, 99861664, 199723328, 399446656]

約数ペア:

[(1, 399446656), (2, 199723328), (4, 99861664), (7, 57063808), (8, 49930832), (14, 28531904), (16, 24965416), (28, 14265952), (31, 12885376), (32, 12482708), (56, 7132976), (62, 6442688), (64, 6241354), (73, 5471872), (112, 3566488), (124, 3221344), (128, 3120677), (146, 2735936), (197, 2027648), (217, 1840768), (224, 1783244), (248, 1610672), (292, 1367968), (394, 1013824), (434, 920384), (448, 891622), (496, 805336), (511, 781696), (584, 683984), (788, 506912), (868, 460192), (896, 445811), (992, 402668), (1022, 390848), (1168, 341992), (1379, 289664), (1576, 253456), (1736, 230096), (1984, 201334), (2044, 195424), (2263, 176512), (2336, 170996), (2758, 144832), (3152, 126728), (3472, 115048), (3968, 100667), (4088, 97712), (4526, 88256), (4672, 85498), (5516, 72416), (6107, 65408), (6304, 63364), (6944, 57524), (8176, 48856), (9052, 44128), (9344, 42749), (11032, 36208), (12214, 32704), (12608, 31682), (13888, 28762), (14381, 27776), (15841, 25216), (16352, 24428), (18104, 22064)]