203415040

素因数分解:

$2^9\times 5^1\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:643

約数の個数: 80

約数和(自身を含む): 491531040

約数和(自身を除く): 288116000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 256, 320, 362, 439, 512, 640, 724, 878, 905, 1280, 1448, 1756, 1810, 2195, 2560, 2896, 3512, 3620, 4390, 5792, 7024, 7240, 8780, 11584, 14048, 14480, 17560, 23168, 28096, 28960, 35120, 46336, 56192, 57920, 70240, 79459, 92672, 112384, 115840, 140480, 158918, 224768, 231680, 280960, 317836, 397295, 463360, 561920, 635672, 794590, 1123840, 1271344, 1589180, 2542688, 3178360, 5085376, 6356720, 10170752, 12713440, 20341504, 25426880, 40683008, 50853760, 101707520, 203415040]

約数ペア:

[(1, 203415040), (2, 101707520), (4, 50853760), (5, 40683008), (8, 25426880), (10, 20341504), (16, 12713440), (20, 10170752), (32, 6356720), (40, 5085376), (64, 3178360), (80, 2542688), (128, 1589180), (160, 1271344), (181, 1123840), (256, 794590), (320, 635672), (362, 561920), (439, 463360), (512, 397295), (640, 317836), (724, 280960), (878, 231680), (905, 224768), (1280, 158918), (1448, 140480), (1756, 115840), (1810, 112384), (2195, 92672), (2560, 79459), (2896, 70240), (3512, 57920), (3620, 56192), (4390, 46336), (5792, 35120), (7024, 28960), (7240, 28096), (8780, 23168), (11584, 17560), (14048, 14480)]