2289980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1487}}^1$

素因数の和:1514

約数の個数: 48

約数和(自身を含む): 5999616

約数和(自身を除く): 3709636

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1487, 1540, 2974, 5948, 7435, 10409, 14870, 16357, 20818, 29740, 32714, 41636, 52045, 65428, 81785, 104090, 114499, 163570, 208180, 228998, 327140, 457996, 572495, 1144990, 2289980]

約数ペア:

[(1, 2289980), (2, 1144990), (4, 572495), (5, 457996), (7, 327140), (10, 228998), (11, 208180), (14, 163570), (20, 114499), (22, 104090), (28, 81785), (35, 65428), (44, 52045), (55, 41636), (70, 32714), (77, 29740), (110, 20818), (140, 16357), (154, 14870), (220, 10409), (308, 7435), (385, 5948), (770, 2974), (1487, 1540)]