20188700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 50663424

約数和(自身を除く): 30474724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 151, 175, 191, 302, 350, 382, 604, 700, 755, 764, 955, 1057, 1337, 1510, 1910, 2114, 2674, 3020, 3775, 3820, 4228, 4775, 5285, 5348, 6685, 7550, 9550, 10570, 13370, 15100, 19100, 21140, 26425, 26740, 28841, 33425, 52850, 57682, 66850, 105700, 115364, 133700, 144205, 201887, 288410, 403774, 576820, 721025, 807548, 1009435, 1442050, 2018870, 2884100, 4037740, 5047175, 10094350, 20188700]

約数ペア:

[(1, 20188700), (2, 10094350), (4, 5047175), (5, 4037740), (7, 2884100), (10, 2018870), (14, 1442050), (20, 1009435), (25, 807548), (28, 721025), (35, 576820), (50, 403774), (70, 288410), (100, 201887), (140, 144205), (151, 133700), (175, 115364), (191, 105700), (302, 66850), (350, 57682), (382, 52850), (604, 33425), (700, 28841), (755, 26740), (764, 26425), (955, 21140), (1057, 19100), (1337, 15100), (1510, 13370), (1910, 10570), (2114, 9550), (2674, 7550), (3020, 6685), (3775, 5348), (3820, 5285), (4228, 4775)]