211529560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{480749}}^1$

素因数の和:480771

約数の個数: 32

約数和(自身を含む): 519210000

約数和(自身を除く): 307680440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 480749, 961498, 1922996, 2403745, 3845992, 4807490, 5288239, 9614980, 10576478, 19229960, 21152956, 26441195, 42305912, 52882390, 105764780, 211529560]

約数ペア:

[(1, 211529560), (2, 105764780), (4, 52882390), (5, 42305912), (8, 26441195), (10, 21152956), (11, 19229960), (20, 10576478), (22, 9614980), (40, 5288239), (44, 4807490), (55, 3845992), (88, 2403745), (110, 1922996), (220, 961498), (440, 480749)]