28216280

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2927}}^1$

素因数の和:3179

約数の個数: 32

約数和(自身を含む): 63771840

約数和(自身を除く): 35555560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 2927, 4820, 5854, 9640, 11708, 14635, 23416, 29270, 58540, 117080, 705407, 1410814, 2821628, 3527035, 5643256, 7054070, 14108140, 28216280]

約数ペア:

[(1, 28216280), (2, 14108140), (4, 7054070), (5, 5643256), (8, 3527035), (10, 2821628), (20, 1410814), (40, 705407), (241, 117080), (482, 58540), (964, 29270), (1205, 23416), (1928, 14635), (2410, 11708), (2927, 9640), (4820, 5854)]