77571760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1951}}^1$

素因数の和:2042

約数の個数: 80

約数和(自身を含む): 209129472

約数和(自身を除く): 131557712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1951, 1988, 2485, 2840, 3902, 3976, 4970, 5680, 7804, 7952, 9755, 9940, 13657, 15608, 19510, 19880, 27314, 31216, 39020, 39760, 54628, 68285, 78040, 109256, 136570, 138521, 156080, 218512, 273140, 277042, 546280, 554084, 692605, 969647, 1092560, 1108168, 1385210, 1939294, 2216336, 2770420, 3878588, 4848235, 5540840, 7757176, 9696470, 11081680, 15514352, 19392940, 38785880, 77571760]

約数ペア:

[(1, 77571760), (2, 38785880), (4, 19392940), (5, 15514352), (7, 11081680), (8, 9696470), (10, 7757176), (14, 5540840), (16, 4848235), (20, 3878588), (28, 2770420), (35, 2216336), (40, 1939294), (56, 1385210), (70, 1108168), (71, 1092560), (80, 969647), (112, 692605), (140, 554084), (142, 546280), (280, 277042), (284, 273140), (355, 218512), (497, 156080), (560, 138521), (568, 136570), (710, 109256), (994, 78040), (1136, 68285), (1420, 54628), (1951, 39760), (1988, 39020), (2485, 31216), (2840, 27314), (3902, 19880), (3976, 19510), (4970, 15608), (5680, 13657), (7804, 9940), (7952, 9755)]