220121000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{20011}}^1$

素因数の和:20043

約数の個数: 64

約数和(自身を含む): 561936960

約数和(自身を除く): 341815960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 1000, 1100, 1375, 2200, 2750, 5500, 11000, 20011, 40022, 80044, 100055, 160088, 200110, 220121, 400220, 440242, 500275, 800440, 880484, 1000550, 1100605, 1760968, 2001100, 2201210, 2501375, 4002200, 4402420, 5002750, 5503025, 8804840, 10005500, 11006050, 20011000, 22012100, 27515125, 44024200, 55030250, 110060500, 220121000]

約数ペア:

[(1, 220121000), (2, 110060500), (4, 55030250), (5, 44024200), (8, 27515125), (10, 22012100), (11, 20011000), (20, 11006050), (22, 10005500), (25, 8804840), (40, 5503025), (44, 5002750), (50, 4402420), (55, 4002200), (88, 2501375), (100, 2201210), (110, 2001100), (125, 1760968), (200, 1100605), (220, 1000550), (250, 880484), (275, 800440), (440, 500275), (500, 440242), (550, 400220), (1000, 220121), (1100, 200110), (1375, 160088), (2200, 100055), (2750, 80044), (5500, 40022), (11000, 20011)]