509318480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{1861}}^1$

素因数の和:2196

約数の個数: 80

約数和(自身を含む): 1296667008

約数和(自身を除く): 787348528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 311, 440, 622, 880, 1244, 1555, 1861, 2488, 3110, 3421, 3722, 4976, 6220, 6842, 7444, 9305, 12440, 13684, 14888, 17105, 18610, 20471, 24880, 27368, 29776, 34210, 37220, 40942, 54736, 68420, 74440, 81884, 102355, 136840, 148880, 163768, 204710, 273680, 327536, 409420, 578771, 818840, 1157542, 1637680, 2315084, 2893855, 4630168, 5787710, 6366481, 9260336, 11575420, 12732962, 23150840, 25465924, 31832405, 46301680, 50931848, 63664810, 101863696, 127329620, 254659240, 509318480]

約数ペア:

[(1, 509318480), (2, 254659240), (4, 127329620), (5, 101863696), (8, 63664810), (10, 50931848), (11, 46301680), (16, 31832405), (20, 25465924), (22, 23150840), (40, 12732962), (44, 11575420), (55, 9260336), (80, 6366481), (88, 5787710), (110, 4630168), (176, 2893855), (220, 2315084), (311, 1637680), (440, 1157542), (622, 818840), (880, 578771), (1244, 409420), (1555, 327536), (1861, 273680), (2488, 204710), (3110, 163768), (3421, 148880), (3722, 136840), (4976, 102355), (6220, 81884), (6842, 74440), (7444, 68420), (9305, 54736), (12440, 40942), (13684, 37220), (14888, 34210), (17105, 29776), (18610, 27368), (20471, 24880)]