49909420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2549}}^1$

素因数の和:2658

約数の個数: 48

約数和(自身を含む): 115668000

約数和(自身を除く): 65758580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 2549, 3916, 4895, 5098, 9790, 10196, 12745, 19580, 25490, 28039, 50980, 56078, 112156, 140195, 226861, 280390, 453722, 560780, 907444, 1134305, 2268610, 2495471, 4537220, 4990942, 9981884, 12477355, 24954710, 49909420]

約数ペア:

[(1, 49909420), (2, 24954710), (4, 12477355), (5, 9981884), (10, 4990942), (11, 4537220), (20, 2495471), (22, 2268610), (44, 1134305), (55, 907444), (89, 560780), (110, 453722), (178, 280390), (220, 226861), (356, 140195), (445, 112156), (890, 56078), (979, 50980), (1780, 28039), (1958, 25490), (2549, 19580), (3916, 12745), (4895, 10196), (5098, 9790)]