20794760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3229}}^1$

素因数の和:3270

約数の個数: 64

約数和(自身を含む): 55814400

約数和(自身を除く): 35019640

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, 3220, 3229, 6440, 6458, 12916, 16145, 22603, 25832, 32290, 45206, 64580, 74267, 90412, 113015, 129160, 148534, 180824, 226030, 297068, 371335, 452060, 519869, 594136, 742670, 904120, 1039738, 1485340, 2079476, 2599345, 2970680, 4158952, 5198690, 10397380, 20794760]

約数ペア:

[(1, 20794760), (2, 10397380), (4, 5198690), (5, 4158952), (7, 2970680), (8, 2599345), (10, 2079476), (14, 1485340), (20, 1039738), (23, 904120), (28, 742670), (35, 594136), (40, 519869), (46, 452060), (56, 371335), (70, 297068), (92, 226030), (115, 180824), (140, 148534), (161, 129160), (184, 113015), (230, 90412), (280, 74267), (322, 64580), (460, 45206), (644, 32290), (805, 25832), (920, 22603), (1288, 16145), (1610, 12916), (3220, 6458), (3229, 6440)]