490874960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1373}}^1$

素因数の和:1536

約数の個数: 80

約数和(自身を含む): 1180705680

約数和(自身を除く): 689830720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 109, 164, 205, 218, 328, 410, 436, 545, 656, 820, 872, 1090, 1373, 1640, 1744, 2180, 2746, 3280, 4360, 4469, 5492, 6865, 8720, 8938, 10984, 13730, 17876, 21968, 22345, 27460, 35752, 44690, 54920, 56293, 71504, 89380, 109840, 112586, 149657, 178760, 225172, 281465, 299314, 357520, 450344, 562930, 598628, 748285, 900688, 1125860, 1197256, 1496570, 2251720, 2394512, 2993140, 4503440, 5986280, 6135937, 11972560, 12271874, 24543748, 30679685, 49087496, 61359370, 98174992, 122718740, 245437480, 490874960]

約数ペア:

[(1, 490874960), (2, 245437480), (4, 122718740), (5, 98174992), (8, 61359370), (10, 49087496), (16, 30679685), (20, 24543748), (40, 12271874), (41, 11972560), (80, 6135937), (82, 5986280), (109, 4503440), (164, 2993140), (205, 2394512), (218, 2251720), (328, 1496570), (410, 1197256), (436, 1125860), (545, 900688), (656, 748285), (820, 598628), (872, 562930), (1090, 450344), (1373, 357520), (1640, 299314), (1744, 281465), (2180, 225172), (2746, 178760), (3280, 149657), (4360, 112586), (4469, 109840), (5492, 89380), (6865, 71504), (8720, 56293), (8938, 54920), (10984, 44690), (13730, 35752), (17876, 27460), (21968, 22345)]