208492040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{787}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 485092800

約数和(自身を除く): 276600760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 179, 185, 296, 358, 370, 716, 740, 787, 895, 1432, 1480, 1574, 1790, 3148, 3580, 3935, 6296, 6623, 7160, 7870, 13246, 15740, 26492, 29119, 31480, 33115, 52984, 58238, 66230, 116476, 132460, 140873, 145595, 232952, 264920, 281746, 291190, 563492, 582380, 704365, 1126984, 1164760, 1408730, 2817460, 5212301, 5634920, 10424602, 20849204, 26061505, 41698408, 52123010, 104246020, 208492040]

約数ペア:

[(1, 208492040), (2, 104246020), (4, 52123010), (5, 41698408), (8, 26061505), (10, 20849204), (20, 10424602), (37, 5634920), (40, 5212301), (74, 2817460), (148, 1408730), (179, 1164760), (185, 1126984), (296, 704365), (358, 582380), (370, 563492), (716, 291190), (740, 281746), (787, 264920), (895, 232952), (1432, 145595), (1480, 140873), (1574, 132460), (1790, 116476), (3148, 66230), (3580, 58238), (3935, 52984), (6296, 33115), (6623, 31480), (7160, 29119), (7870, 26492), (13246, 15740)]