1661000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{151}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 4268160

約数和(自身を除く): 2607160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 151, 200, 220, 250, 275, 302, 440, 500, 550, 604, 755, 1000, 1100, 1208, 1375, 1510, 1661, 2200, 2750, 3020, 3322, 3775, 5500, 6040, 6644, 7550, 8305, 11000, 13288, 15100, 16610, 18875, 30200, 33220, 37750, 41525, 66440, 75500, 83050, 151000, 166100, 207625, 332200, 415250, 830500, 1661000]

約数ペア:

[(1, 1661000), (2, 830500), (4, 415250), (5, 332200), (8, 207625), (10, 166100), (11, 151000), (20, 83050), (22, 75500), (25, 66440), (40, 41525), (44, 37750), (50, 33220), (55, 30200), (88, 18875), (100, 16610), (110, 15100), (125, 13288), (151, 11000), (200, 8305), (220, 7550), (250, 6644), (275, 6040), (302, 5500), (440, 3775), (500, 3322), (550, 3020), (604, 2750), (755, 2200), (1000, 1661), (1100, 1510), (1208, 1375)]