81935280

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{5419}}^1$

素因数の和:5448

約数の個数: 160

約数和(自身を含む): 322598400

約数和(自身を除く): 240663120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 5419, 7560, 10838, 15120, 16257, 21676, 27095, 32514, 37933, 43352, 48771, 54190, 65028, 75866, 81285, 86704, 97542, 108380, 113799, 130056, 146313, 151732, 162570, 189665, 195084, 216760, 227598, 243855, 260112, 292626, 303464, 325140, 341397, 379330, 390168, 433520, 455196, 487710, 568995, 585252, 606928, 650280, 682794, 731565, 758660, 780336, 910392, 975420, 1024191, 1137990, 1170504, 1300560, 1365588, 1463130, 1517320, 1706985, 1820784, 1950840, 2048382, 2275980, 2341008, 2731176, 2926260, 3034640, 3413970, 3901680, 4096764, 4551960, 5120955, 5462352, 5852520, 6827940, 8193528, 9103920, 10241910, 11705040, 13655880, 16387056, 20483820, 27311760, 40967640, 81935280]

約数ペア:

[(1, 81935280), (2, 40967640), (3, 27311760), (4, 20483820), (5, 16387056), (6, 13655880), (7, 11705040), (8, 10241910), (9, 9103920), (10, 8193528), (12, 6827940), (14, 5852520), (15, 5462352), (16, 5120955), (18, 4551960), (20, 4096764), (21, 3901680), (24, 3413970), (27, 3034640), (28, 2926260), (30, 2731176), (35, 2341008), (36, 2275980), (40, 2048382), (42, 1950840), (45, 1820784), (48, 1706985), (54, 1517320), (56, 1463130), (60, 1365588), (63, 1300560), (70, 1170504), (72, 1137990), (80, 1024191), (84, 975420), (90, 910392), (105, 780336), (108, 758660), (112, 731565), (120, 682794), (126, 650280), (135, 606928), (140, 585252), (144, 568995), (168, 487710), (180, 455196), (189, 433520), (210, 390168), (216, 379330), (240, 341397), (252, 325140), (270, 303464), (280, 292626), (315, 260112), (336, 243855), (360, 227598), (378, 216760), (420, 195084), (432, 189665), (504, 162570), (540, 151732), (560, 146313), (630, 130056), (720, 113799), (756, 108380), (840, 97542), (945, 86704), (1008, 81285), (1080, 75866), (1260, 65028), (1512, 54190), (1680, 48771), (1890, 43352), (2160, 37933), (2520, 32514), (3024, 27095), (3780, 21676), (5040, 16257), (5419, 15120), (7560, 10838)]