81619120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:838

約数の個数: 80

約数和(自身を含む): 208834848

約数和(自身を除く): 127215728

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 137, 176, 220, 274, 440, 548, 677, 685, 880, 1096, 1354, 1370, 1507, 2192, 2708, 2740, 3014, 3385, 5416, 5480, 6028, 6770, 7447, 7535, 10832, 10960, 12056, 13540, 14894, 15070, 24112, 27080, 29788, 30140, 37235, 54160, 59576, 60280, 74470, 92749, 119152, 120560, 148940, 185498, 297880, 370996, 463745, 595760, 741992, 927490, 1020239, 1483984, 1854980, 2040478, 3709960, 4080956, 5101195, 7419920, 8161912, 10202390, 16323824, 20404780, 40809560, 81619120]

約数ペア:

[(1, 81619120), (2, 40809560), (4, 20404780), (5, 16323824), (8, 10202390), (10, 8161912), (11, 7419920), (16, 5101195), (20, 4080956), (22, 3709960), (40, 2040478), (44, 1854980), (55, 1483984), (80, 1020239), (88, 927490), (110, 741992), (137, 595760), (176, 463745), (220, 370996), (274, 297880), (440, 185498), (548, 148940), (677, 120560), (685, 119152), (880, 92749), (1096, 74470), (1354, 60280), (1370, 59576), (1507, 54160), (2192, 37235), (2708, 30140), (2740, 29788), (3014, 27080), (3385, 24112), (5416, 15070), (5480, 14894), (6028, 13540), (6770, 12056), (7447, 10960), (7535, 10832)]