30881620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1823}}^1$

素因数の和:1861

約数の個数: 72

約数和(自身を含む): 81510912

約数和(自身を除く): 50629292

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 1823, 2420, 3388, 3646, 4235, 7292, 8470, 9115, 12761, 16940, 18230, 20053, 25522, 36460, 40106, 51044, 63805, 80212, 100265, 127610, 140371, 200530, 220583, 255220, 280742, 401060, 441166, 561484, 701855, 882332, 1102915, 1403710, 1544081, 2205830, 2807420, 3088162, 4411660, 6176324, 7720405, 15440810, 30881620]

約数ペア:

[(1, 30881620), (2, 15440810), (4, 7720405), (5, 6176324), (7, 4411660), (10, 3088162), (11, 2807420), (14, 2205830), (20, 1544081), (22, 1403710), (28, 1102915), (35, 882332), (44, 701855), (55, 561484), (70, 441166), (77, 401060), (110, 280742), (121, 255220), (140, 220583), (154, 200530), (220, 140371), (242, 127610), (308, 100265), (385, 80212), (484, 63805), (605, 51044), (770, 40106), (847, 36460), (1210, 25522), (1540, 20053), (1694, 18230), (1823, 16940), (2420, 12761), (3388, 9115), (3646, 8470), (4235, 7292)]