1277560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:112

約数の個数: 48

約数和(自身を含む): 3101400

約数和(自身を除く): 1823840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 1558, 1640, 1681, 3116, 3362, 3895, 6232, 6724, 7790, 8405, 13448, 15580, 16810, 31160, 31939, 33620, 63878, 67240, 127756, 159695, 255512, 319390, 638780, 1277560]

約数ペア:

[(1, 1277560), (2, 638780), (4, 319390), (5, 255512), (8, 159695), (10, 127756), (19, 67240), (20, 63878), (38, 33620), (40, 31939), (41, 31160), (76, 16810), (82, 15580), (95, 13448), (152, 8405), (164, 7790), (190, 6724), (205, 6232), (328, 3895), (380, 3362), (410, 3116), (760, 1681), (779, 1640), (820, 1558)]