220487680

素因数分解:

$2^{13}\times 5^1\times 7^1\times {\mathrm{769}}^1$

素因数の和:807

約数の個数: 112

約数和(自身を含む): 605515680

約数和(自身を除く): 385028000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 769, 896, 1024, 1120, 1280, 1538, 1792, 2048, 2240, 2560, 3076, 3584, 3845, 4096, 4480, 5120, 5383, 6152, 7168, 7690, 8192, 8960, 10240, 10766, 12304, 14336, 15380, 17920, 20480, 21532, 24608, 26915, 28672, 30760, 35840, 40960, 43064, 49216, 53830, 57344, 61520, 71680, 86128, 98432, 107660, 123040, 143360, 172256, 196864, 215320, 246080, 286720, 344512, 393728, 430640, 492160, 689024, 787456, 861280, 984320, 1378048, 1574912, 1722560, 1968640, 2756096, 3149824, 3445120, 3937280, 5512192, 6299648, 6890240, 7874560, 11024384, 13780480, 15749120, 22048768, 27560960, 31498240, 44097536, 55121920, 110243840, 220487680]

約数ペア:

[(1, 220487680), (2, 110243840), (4, 55121920), (5, 44097536), (7, 31498240), (8, 27560960), (10, 22048768), (14, 15749120), (16, 13780480), (20, 11024384), (28, 7874560), (32, 6890240), (35, 6299648), (40, 5512192), (56, 3937280), (64, 3445120), (70, 3149824), (80, 2756096), (112, 1968640), (128, 1722560), (140, 1574912), (160, 1378048), (224, 984320), (256, 861280), (280, 787456), (320, 689024), (448, 492160), (512, 430640), (560, 393728), (640, 344512), (769, 286720), (896, 246080), (1024, 215320), (1120, 196864), (1280, 172256), (1538, 143360), (1792, 123040), (2048, 107660), (2240, 98432), (2560, 86128), (3076, 71680), (3584, 61520), (3845, 57344), (4096, 53830), (4480, 49216), (5120, 43064), (5383, 40960), (6152, 35840), (7168, 30760), (7690, 28672), (8192, 26915), (8960, 24608), (10240, 21532), (10766, 20480), (12304, 17920), (14336, 15380)]