20534030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 43001280

約数和(自身を除く): 22467250

約数列:

[1, 2, 5, 10, 11, 22, 29, 41, 55, 58, 82, 110, 145, 157, 205, 290, 314, 319, 410, 451, 638, 785, 902, 1189, 1570, 1595, 1727, 2255, 2378, 3190, 3454, 4510, 4553, 5945, 6437, 8635, 9106, 11890, 12874, 13079, 17270, 22765, 26158, 32185, 45530, 50083, 64370, 65395, 70807, 100166, 130790, 141614, 186673, 250415, 354035, 373346, 500830, 708070, 933365, 1866730, 2053403, 4106806, 10267015, 20534030]

約数ペア:

[(1, 20534030), (2, 10267015), (5, 4106806), (10, 2053403), (11, 1866730), (22, 933365), (29, 708070), (41, 500830), (55, 373346), (58, 354035), (82, 250415), (110, 186673), (145, 141614), (157, 130790), (205, 100166), (290, 70807), (314, 65395), (319, 64370), (410, 50083), (451, 45530), (638, 32185), (785, 26158), (902, 22765), (1189, 17270), (1570, 13079), (1595, 12874), (1727, 11890), (2255, 9106), (2378, 8635), (3190, 6437), (3454, 5945), (4510, 4553)]