438384640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1381}}^1$

素因数の和:1439

約数の個数: 96

約数和(自身を含む): 1086583680

約数和(自身を除く): 648199040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1381, 1984, 2048, 2480, 2560, 2762, 3968, 4960, 5120, 5524, 6905, 7936, 9920, 10240, 11048, 13810, 15872, 19840, 22096, 27620, 31744, 39680, 42811, 44192, 55240, 63488, 79360, 85622, 88384, 110480, 158720, 171244, 176768, 214055, 220960, 317440, 342488, 353536, 428110, 441920, 684976, 707072, 856220, 883840, 1369952, 1414144, 1712440, 1767680, 2739904, 2828288, 3424880, 3535360, 5479808, 6849760, 7070720, 10959616, 13699520, 14141440, 21919232, 27399040, 43838464, 54798080, 87676928, 109596160, 219192320, 438384640]

約数ペア:

[(1, 438384640), (2, 219192320), (4, 109596160), (5, 87676928), (8, 54798080), (10, 43838464), (16, 27399040), (20, 21919232), (31, 14141440), (32, 13699520), (40, 10959616), (62, 7070720), (64, 6849760), (80, 5479808), (124, 3535360), (128, 3424880), (155, 2828288), (160, 2739904), (248, 1767680), (256, 1712440), (310, 1414144), (320, 1369952), (496, 883840), (512, 856220), (620, 707072), (640, 684976), (992, 441920), (1024, 428110), (1240, 353536), (1280, 342488), (1381, 317440), (1984, 220960), (2048, 214055), (2480, 176768), (2560, 171244), (2762, 158720), (3968, 110480), (4960, 88384), (5120, 85622), (5524, 79360), (6905, 63488), (7936, 55240), (9920, 44192), (10240, 42811), (11048, 39680), (13810, 31744), (15872, 27620), (19840, 22096)]