21906480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{941}}^1$

素因数の和:1054

約数の個数: 80

約数和(自身を含む): 68683104

約数和(自身を除く): 46776624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 97, 120, 194, 240, 291, 388, 485, 582, 776, 941, 970, 1164, 1455, 1552, 1882, 1940, 2328, 2823, 2910, 3764, 3880, 4656, 4705, 5646, 5820, 7528, 7760, 9410, 11292, 11640, 14115, 15056, 18820, 22584, 23280, 28230, 37640, 45168, 56460, 75280, 91277, 112920, 182554, 225840, 273831, 365108, 456385, 547662, 730216, 912770, 1095324, 1369155, 1460432, 1825540, 2190648, 2738310, 3651080, 4381296, 5476620, 7302160, 10953240, 21906480]

約数ペア:

[(1, 21906480), (2, 10953240), (3, 7302160), (4, 5476620), (5, 4381296), (6, 3651080), (8, 2738310), (10, 2190648), (12, 1825540), (15, 1460432), (16, 1369155), (20, 1095324), (24, 912770), (30, 730216), (40, 547662), (48, 456385), (60, 365108), (80, 273831), (97, 225840), (120, 182554), (194, 112920), (240, 91277), (291, 75280), (388, 56460), (485, 45168), (582, 37640), (776, 28230), (941, 23280), (970, 22584), (1164, 18820), (1455, 15056), (1552, 14115), (1882, 11640), (1940, 11292), (2328, 9410), (2823, 7760), (2910, 7528), (3764, 5820), (3880, 5646), (4656, 4705)]