19968450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{239}}^1\times {\mathrm{557}}^1$

素因数の和:811

約数の個数: 48

約数和(自身を含む): 49818240

約数和(自身を除く): 29849790

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 239, 478, 557, 717, 1114, 1195, 1434, 1671, 2390, 2785, 3342, 3585, 5570, 5975, 7170, 8355, 11950, 13925, 16710, 17925, 27850, 35850, 41775, 83550, 133123, 266246, 399369, 665615, 798738, 1331230, 1996845, 3328075, 3993690, 6656150, 9984225, 19968450]

約数ペア:

[(1, 19968450), (2, 9984225), (3, 6656150), (5, 3993690), (6, 3328075), (10, 1996845), (15, 1331230), (25, 798738), (30, 665615), (50, 399369), (75, 266246), (150, 133123), (239, 83550), (478, 41775), (557, 35850), (717, 27850), (1114, 17925), (1195, 16710), (1434, 13925), (1671, 11950), (2390, 8355), (2785, 7170), (3342, 5975), (3585, 5570)]