39995120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{967}}^1$

素因数の和:1038

約数の個数: 80

約数和(自身を含む): 103707648

約数和(自身を除く): 63712528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 470, 517, 752, 880, 940, 967, 1034, 1880, 1934, 2068, 2585, 3760, 3868, 4136, 4835, 5170, 7736, 8272, 9670, 10340, 10637, 15472, 19340, 20680, 21274, 38680, 41360, 42548, 45449, 53185, 77360, 85096, 90898, 106370, 170192, 181796, 212740, 227245, 363592, 425480, 454490, 499939, 727184, 850960, 908980, 999878, 1817960, 1999756, 2499695, 3635920, 3999512, 4999390, 7999024, 9998780, 19997560, 39995120]

約数ペア:

[(1, 39995120), (2, 19997560), (4, 9998780), (5, 7999024), (8, 4999390), (10, 3999512), (11, 3635920), (16, 2499695), (20, 1999756), (22, 1817960), (40, 999878), (44, 908980), (47, 850960), (55, 727184), (80, 499939), (88, 454490), (94, 425480), (110, 363592), (176, 227245), (188, 212740), (220, 181796), (235, 170192), (376, 106370), (440, 90898), (470, 85096), (517, 77360), (752, 53185), (880, 45449), (940, 42548), (967, 41360), (1034, 38680), (1880, 21274), (1934, 20680), (2068, 19340), (2585, 15472), (3760, 10637), (3868, 10340), (4136, 9670), (4835, 8272), (5170, 7736)]