81300940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{10957}}^1$

素因数の和:11026

約数の個数: 48

約数和(自身を含む): 198821952

約数和(自身を除く): 117521012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 10957, 21914, 43828, 54785, 76699, 109570, 153398, 219140, 306796, 383495, 580721, 766990, 1161442, 1533980, 2322884, 2903605, 4065047, 5807210, 8130094, 11614420, 16260188, 20325235, 40650470, 81300940]

約数ペア:

[(1, 81300940), (2, 40650470), (4, 20325235), (5, 16260188), (7, 11614420), (10, 8130094), (14, 5807210), (20, 4065047), (28, 2903605), (35, 2322884), (53, 1533980), (70, 1161442), (106, 766990), (140, 580721), (212, 383495), (265, 306796), (371, 219140), (530, 153398), (742, 109570), (1060, 76699), (1484, 54785), (1855, 43828), (3710, 21914), (7420, 10957)]