20708320

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4463}}^1$

素因数の和:4507

約数の個数: 48

約数和(自身を含む): 50621760

約数和(自身を除く): 29913440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4463, 4640, 8926, 17852, 22315, 35704, 44630, 71408, 89260, 129427, 142816, 178520, 258854, 357040, 517708, 647135, 714080, 1035416, 1294270, 2070832, 2588540, 4141664, 5177080, 10354160, 20708320]

約数ペア:

[(1, 20708320), (2, 10354160), (4, 5177080), (5, 4141664), (8, 2588540), (10, 2070832), (16, 1294270), (20, 1035416), (29, 714080), (32, 647135), (40, 517708), (58, 357040), (80, 258854), (116, 178520), (145, 142816), (160, 129427), (232, 89260), (290, 71408), (464, 44630), (580, 35704), (928, 22315), (1160, 17852), (2320, 8926), (4463, 4640)]