19395350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 39653712

約数和(自身を除く): 20258362

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 53, 65, 106, 130, 265, 325, 530, 563, 650, 689, 1126, 1325, 1378, 2650, 2815, 3445, 5630, 6890, 7319, 14075, 14638, 17225, 28150, 29839, 34450, 36595, 59678, 73190, 149195, 182975, 298390, 365950, 387907, 745975, 775814, 1491950, 1939535, 3879070, 9697675, 19395350]

約数ペア:

[(1, 19395350), (2, 9697675), (5, 3879070), (10, 1939535), (13, 1491950), (25, 775814), (26, 745975), (50, 387907), (53, 365950), (65, 298390), (106, 182975), (130, 149195), (265, 73190), (325, 59678), (530, 36595), (563, 34450), (650, 29839), (689, 28150), (1126, 17225), (1325, 14638), (1378, 14075), (2650, 7319), (2815, 6890), (3445, 5630)]