90867500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{1913}}^1$

素因数の和:1956

約数の個数: 60

約数和(自身を含む): 209276760

約数和(自身を除く): 118409260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 625, 950, 1250, 1900, 1913, 2375, 2500, 3826, 4750, 7652, 9500, 9565, 11875, 19130, 23750, 36347, 38260, 47500, 47825, 72694, 95650, 145388, 181735, 191300, 239125, 363470, 478250, 726940, 908675, 956500, 1195625, 1817350, 2391250, 3634700, 4543375, 4782500, 9086750, 18173500, 22716875, 45433750, 90867500]

約数ペア:

[(1, 90867500), (2, 45433750), (4, 22716875), (5, 18173500), (10, 9086750), (19, 4782500), (20, 4543375), (25, 3634700), (38, 2391250), (50, 1817350), (76, 1195625), (95, 956500), (100, 908675), (125, 726940), (190, 478250), (250, 363470), (380, 239125), (475, 191300), (500, 181735), (625, 145388), (950, 95650), (1250, 72694), (1900, 47825), (1913, 47500), (2375, 38260), (2500, 36347), (3826, 23750), (4750, 19130), (7652, 11875), (9500, 9565)]