21881200

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{4973}}^1$

素因数の和:5002

約数の個数: 60

約数和(自身を含む): 57360168

約数和(自身を除く): 35478968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4400, 4973, 9946, 19892, 24865, 39784, 49730, 54703, 79568, 99460, 109406, 124325, 198920, 218812, 248650, 273515, 397840, 437624, 497300, 547030, 875248, 994600, 1094060, 1367575, 1989200, 2188120, 2735150, 4376240, 5470300, 10940600, 21881200]

約数ペア:

[(1, 21881200), (2, 10940600), (4, 5470300), (5, 4376240), (8, 2735150), (10, 2188120), (11, 1989200), (16, 1367575), (20, 1094060), (22, 994600), (25, 875248), (40, 547030), (44, 497300), (50, 437624), (55, 397840), (80, 273515), (88, 248650), (100, 218812), (110, 198920), (176, 124325), (200, 109406), (220, 99460), (275, 79568), (400, 54703), (440, 49730), (550, 39784), (880, 24865), (1100, 19892), (2200, 9946), (4400, 4973)]