20180940592

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1\times {\mathrm{2551}}^1$

素因数の和:3122

約数の個数: 80

約数和(自身を含む): 42036952320

約数和(自身を除く): 21856011728

約数列:

[1, 2, 4, 8, 16, 19, 38, 53, 76, 106, 152, 212, 304, 424, 491, 848, 982, 1007, 1964, 2014, 2551, 3928, 4028, 5102, 7856, 8056, 9329, 10204, 16112, 18658, 20408, 26023, 37316, 40816, 48469, 52046, 74632, 96938, 104092, 135203, 149264, 193876, 208184, 270406, 387752, 416368, 494437, 540812, 775504, 988874, 1081624, 1252541, 1977748, 2163248, 2505082, 2568857, 3955496, 5010164, 5137714, 7910992, 10020328, 10275428, 20040656, 20550856, 23798279, 41101712, 47596558, 66384673, 95193116, 132769346, 190386232, 265538692, 380772464, 531077384, 1062154768, 1261308787, 2522617574, 5045235148, 10090470296, 20180940592]

約数ペア:

[(1, 20180940592), (2, 10090470296), (4, 5045235148), (8, 2522617574), (16, 1261308787), (19, 1062154768), (38, 531077384), (53, 380772464), (76, 265538692), (106, 190386232), (152, 132769346), (212, 95193116), (304, 66384673), (424, 47596558), (491, 41101712), (848, 23798279), (982, 20550856), (1007, 20040656), (1964, 10275428), (2014, 10020328), (2551, 7910992), (3928, 5137714), (4028, 5010164), (5102, 3955496), (7856, 2568857), (8056, 2505082), (9329, 2163248), (10204, 1977748), (16112, 1252541), (18658, 1081624), (20408, 988874), (26023, 775504), (37316, 540812), (40816, 494437), (48469, 416368), (52046, 387752), (74632, 270406), (96938, 208184), (104092, 193876), (135203, 149264)]