20377120

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6703}}^1$

素因数の和:6737

約数の個数: 48

約数和(自身を含む): 50682240

約数和(自身を除く): 30305120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6703, 13406, 26812, 33515, 53624, 67030, 107248, 127357, 134060, 214496, 254714, 268120, 509428, 536240, 636785, 1018856, 1072480, 1273570, 2037712, 2547140, 4075424, 5094280, 10188560, 20377120]

約数ペア:

[(1, 20377120), (2, 10188560), (4, 5094280), (5, 4075424), (8, 2547140), (10, 2037712), (16, 1273570), (19, 1072480), (20, 1018856), (32, 636785), (38, 536240), (40, 509428), (76, 268120), (80, 254714), (95, 214496), (152, 134060), (160, 127357), (190, 107248), (304, 67030), (380, 53624), (608, 33515), (760, 26812), (1520, 13406), (3040, 6703)]