208045240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{400087}}^1$

素因数の和:400111

約数の個数: 32

約数和(自身を含む): 504110880

約数和(自身を除く): 296065640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 400087, 800174, 1600348, 2000435, 3200696, 4000870, 5201131, 8001740, 10402262, 16003480, 20804524, 26005655, 41609048, 52011310, 104022620, 208045240]

約数ペア:

[(1, 208045240), (2, 104022620), (4, 52011310), (5, 41609048), (8, 26005655), (10, 20804524), (13, 16003480), (20, 10402262), (26, 8001740), (40, 5201131), (52, 4000870), (65, 3200696), (104, 2000435), (130, 1600348), (260, 800174), (520, 400087)]