8639620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 19994688

約数和(自身を除く): 11355068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 173, 220, 227, 346, 454, 692, 865, 908, 1135, 1730, 1903, 2270, 2497, 3460, 3806, 4540, 4994, 7612, 9515, 9988, 12485, 19030, 24970, 38060, 39271, 49940, 78542, 157084, 196355, 392710, 431981, 785420, 863962, 1727924, 2159905, 4319810, 8639620]

約数ペア:

[(1, 8639620), (2, 4319810), (4, 2159905), (5, 1727924), (10, 863962), (11, 785420), (20, 431981), (22, 392710), (44, 196355), (55, 157084), (110, 78542), (173, 49940), (220, 39271), (227, 38060), (346, 24970), (454, 19030), (692, 12485), (865, 9988), (908, 9515), (1135, 7612), (1730, 4994), (1903, 4540), (2270, 3806), (2497, 3460)]