128856100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{67819}}^1$

素因数の和:67852

約数の個数: 36

約数和(自身を含む): 294338800

約数和(自身を除く): 165482700

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 67819, 135638, 271276, 339095, 678190, 1288561, 1356380, 1695475, 2577122, 3390950, 5154244, 6442805, 6781900, 12885610, 25771220, 32214025, 64428050, 128856100]

約数ペア:

[(1, 128856100), (2, 64428050), (4, 32214025), (5, 25771220), (10, 12885610), (19, 6781900), (20, 6442805), (25, 5154244), (38, 3390950), (50, 2577122), (76, 1695475), (95, 1356380), (100, 1288561), (190, 678190), (380, 339095), (475, 271276), (950, 135638), (1900, 67819)]