19604150

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 38153808

約数和(自身を除く): 18549658

約数列:

[1, 2, 5, 10, 25, 41, 50, 73, 82, 131, 146, 205, 262, 365, 410, 655, 730, 1025, 1310, 1825, 2050, 2993, 3275, 3650, 5371, 5986, 6550, 9563, 10742, 14965, 19126, 26855, 29930, 47815, 53710, 74825, 95630, 134275, 149650, 239075, 268550, 392083, 478150, 784166, 1960415, 3920830, 9802075, 19604150]

約数ペア:

[(1, 19604150), (2, 9802075), (5, 3920830), (10, 1960415), (25, 784166), (41, 478150), (50, 392083), (73, 268550), (82, 239075), (131, 149650), (146, 134275), (205, 95630), (262, 74825), (365, 53710), (410, 47815), (655, 29930), (730, 26855), (1025, 19126), (1310, 14965), (1825, 10742), (2050, 9563), (2993, 6550), (3275, 5986), (3650, 5371)]