20220560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 50621760

約数和(自身を除く): 30401200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 53, 76, 80, 95, 106, 152, 190, 212, 251, 265, 304, 380, 424, 502, 530, 760, 848, 1004, 1007, 1060, 1255, 1520, 2008, 2014, 2120, 2510, 4016, 4028, 4240, 4769, 5020, 5035, 8056, 9538, 10040, 10070, 13303, 16112, 19076, 20080, 20140, 23845, 26606, 38152, 40280, 47690, 53212, 66515, 76304, 80560, 95380, 106424, 133030, 190760, 212848, 252757, 266060, 381520, 505514, 532120, 1011028, 1064240, 1263785, 2022056, 2527570, 4044112, 5055140, 10110280, 20220560]

約数ペア:

[(1, 20220560), (2, 10110280), (4, 5055140), (5, 4044112), (8, 2527570), (10, 2022056), (16, 1263785), (19, 1064240), (20, 1011028), (38, 532120), (40, 505514), (53, 381520), (76, 266060), (80, 252757), (95, 212848), (106, 190760), (152, 133030), (190, 106424), (212, 95380), (251, 80560), (265, 76304), (304, 66515), (380, 53212), (424, 47690), (502, 40280), (530, 38152), (760, 26606), (848, 23845), (1004, 20140), (1007, 20080), (1060, 19076), (1255, 16112), (1520, 13303), (2008, 10070), (2014, 10040), (2120, 9538), (2510, 8056), (4016, 5035), (4028, 5020), (4240, 4769)]