20957320

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2927}}^1$

素因数の和:3117

約数の個数: 32

約数和(自身を含む): 47433600

約数和(自身を除く): 26476280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2927, 3580, 5854, 7160, 11708, 14635, 23416, 29270, 58540, 117080, 523933, 1047866, 2095732, 2619665, 4191464, 5239330, 10478660, 20957320]

約数ペア:

[(1, 20957320), (2, 10478660), (4, 5239330), (5, 4191464), (8, 2619665), (10, 2095732), (20, 1047866), (40, 523933), (179, 117080), (358, 58540), (716, 29270), (895, 23416), (1432, 14635), (1790, 11708), (2927, 7160), (3580, 5854)]