16540940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{563}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 37806048

約数和(自身を除く): 21265108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 563, 565, 1126, 1130, 1469, 2252, 2260, 2815, 2938, 5630, 5876, 7319, 7345, 11260, 14638, 14690, 29276, 29380, 36595, 63619, 73190, 127238, 146380, 254476, 318095, 636190, 827047, 1272380, 1654094, 3308188, 4135235, 8270470, 16540940]

約数ペア:

[(1, 16540940), (2, 8270470), (4, 4135235), (5, 3308188), (10, 1654094), (13, 1272380), (20, 827047), (26, 636190), (52, 318095), (65, 254476), (113, 146380), (130, 127238), (226, 73190), (260, 63619), (452, 36595), (563, 29380), (565, 29276), (1126, 14690), (1130, 14638), (1469, 11260), (2252, 7345), (2260, 7319), (2815, 5876), (2938, 5630)]