18774580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1399}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 43747200

約数和(自身を除く): 24972620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 1399, 2684, 2798, 3355, 5596, 6710, 6995, 13420, 13990, 15389, 27980, 30778, 61556, 76945, 85339, 153890, 170678, 307780, 341356, 426695, 853390, 938729, 1706780, 1877458, 3754916, 4693645, 9387290, 18774580]

約数ペア:

[(1, 18774580), (2, 9387290), (4, 4693645), (5, 3754916), (10, 1877458), (11, 1706780), (20, 938729), (22, 853390), (44, 426695), (55, 341356), (61, 307780), (110, 170678), (122, 153890), (220, 85339), (244, 76945), (305, 61556), (610, 30778), (671, 27980), (1220, 15389), (1342, 13990), (1399, 13420), (2684, 6995), (2798, 6710), (3355, 5596)]