261250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:52

約数の個数: 40

約数和(自身を含む): 562320

約数和(自身を除く): 301070

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 125, 190, 209, 250, 275, 418, 475, 550, 625, 950, 1045, 1250, 1375, 2090, 2375, 2750, 4750, 5225, 6875, 10450, 11875, 13750, 23750, 26125, 52250, 130625, 261250]

約数ペア:

[(1, 261250), (2, 130625), (5, 52250), (10, 26125), (11, 23750), (19, 13750), (22, 11875), (25, 10450), (38, 6875), (50, 5225), (55, 4750), (95, 2750), (110, 2375), (125, 2090), (190, 1375), (209, 1250), (250, 1045), (275, 950), (418, 625), (475, 550)]