20212256

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 21156064

約数列:

[1, 2, 4, 8, 16, 32, 47, 89, 94, 151, 178, 188, 302, 356, 376, 604, 712, 752, 1208, 1424, 1504, 2416, 2848, 4183, 4832, 7097, 8366, 13439, 14194, 16732, 26878, 28388, 33464, 53756, 56776, 66928, 107512, 113552, 133856, 215024, 227104, 430048, 631633, 1263266, 2526532, 5053064, 10106128, 20212256]

約数ペア:

[(1, 20212256), (2, 10106128), (4, 5053064), (8, 2526532), (16, 1263266), (32, 631633), (47, 430048), (89, 227104), (94, 215024), (151, 133856), (178, 113552), (188, 107512), (302, 66928), (356, 56776), (376, 53756), (604, 33464), (712, 28388), (752, 26878), (1208, 16732), (1424, 14194), (1504, 13439), (2416, 8366), (2848, 7097), (4183, 4832)]