163817240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{491}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 389664000

約数和(自身を除く): 225846760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 439, 491, 760, 878, 982, 1756, 1964, 2195, 2455, 3512, 3928, 4390, 4910, 8341, 8780, 9329, 9820, 16682, 17560, 18658, 19640, 33364, 37316, 41705, 46645, 66728, 74632, 83410, 93290, 166820, 186580, 215549, 333640, 373160, 431098, 862196, 1077745, 1724392, 2155490, 4095431, 4310980, 8190862, 8621960, 16381724, 20477155, 32763448, 40954310, 81908620, 163817240]

約数ペア:

[(1, 163817240), (2, 81908620), (4, 40954310), (5, 32763448), (8, 20477155), (10, 16381724), (19, 8621960), (20, 8190862), (38, 4310980), (40, 4095431), (76, 2155490), (95, 1724392), (152, 1077745), (190, 862196), (380, 431098), (439, 373160), (491, 333640), (760, 215549), (878, 186580), (982, 166820), (1756, 93290), (1964, 83410), (2195, 74632), (2455, 66728), (3512, 46645), (3928, 41705), (4390, 37316), (4910, 33364), (8341, 19640), (8780, 18658), (9329, 17560), (9820, 16682)]