20682075

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 36470880

約数和(自身を除く): 15788805

約数列:

[1, 3, 5, 15, 25, 29, 37, 75, 87, 111, 145, 185, 257, 435, 555, 725, 771, 925, 1073, 1285, 2175, 2775, 3219, 3855, 5365, 6425, 7453, 9509, 16095, 19275, 22359, 26825, 28527, 37265, 47545, 80475, 111795, 142635, 186325, 237725, 275761, 558975, 713175, 827283, 1378805, 4136415, 6894025, 20682075]

約数ペア:

[(1, 20682075), (3, 6894025), (5, 4136415), (15, 1378805), (25, 827283), (29, 713175), (37, 558975), (75, 275761), (87, 237725), (111, 186325), (145, 142635), (185, 111795), (257, 80475), (435, 47545), (555, 37265), (725, 28527), (771, 26825), (925, 22359), (1073, 19275), (1285, 16095), (2175, 9509), (2775, 7453), (3219, 6425), (3855, 5365)]