19854520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3083}}^1$

素因数の和:3124

約数の個数: 64

約数和(自身を含む): 53291520

約数和(自身を除く): 33437000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3083, 3220, 6166, 6440, 12332, 15415, 21581, 24664, 30830, 43162, 61660, 70909, 86324, 107905, 123320, 141818, 172648, 215810, 283636, 354545, 431620, 496363, 567272, 709090, 863240, 992726, 1418180, 1985452, 2481815, 2836360, 3970904, 4963630, 9927260, 19854520]

約数ペア:

[(1, 19854520), (2, 9927260), (4, 4963630), (5, 3970904), (7, 2836360), (8, 2481815), (10, 1985452), (14, 1418180), (20, 992726), (23, 863240), (28, 709090), (35, 567272), (40, 496363), (46, 431620), (56, 354545), (70, 283636), (92, 215810), (115, 172648), (140, 141818), (161, 123320), (184, 107905), (230, 86324), (280, 70909), (322, 61660), (460, 43162), (644, 30830), (805, 24664), (920, 21581), (1288, 15415), (1610, 12332), (3083, 6440), (3220, 6166)]