1217900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:674

約数の個数: 36

約数和(自身を含む): 2786280

約数和(自身を除く): 1568380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 641, 950, 1282, 1900, 2564, 3205, 6410, 12179, 12820, 16025, 24358, 32050, 48716, 60895, 64100, 121790, 243580, 304475, 608950, 1217900]

約数ペア:

[(1, 1217900), (2, 608950), (4, 304475), (5, 243580), (10, 121790), (19, 64100), (20, 60895), (25, 48716), (38, 32050), (50, 24358), (76, 16025), (95, 12820), (100, 12179), (190, 6410), (380, 3205), (475, 2564), (641, 1900), (950, 1282)]