18888100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{223}}^1$

素因数の和:266

約数の個数: 108

約数和(自身を含む): 51718912

約数和(自身を除く): 32830812

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 121, 140, 154, 175, 220, 223, 242, 275, 308, 350, 385, 446, 484, 550, 605, 700, 770, 847, 892, 1100, 1115, 1210, 1540, 1561, 1694, 1925, 2230, 2420, 2453, 3025, 3122, 3388, 3850, 4235, 4460, 4906, 5575, 6050, 6244, 7700, 7805, 8470, 9812, 11150, 12100, 12265, 15610, 16940, 17171, 21175, 22300, 24530, 26983, 31220, 34342, 39025, 42350, 49060, 53966, 61325, 68684, 78050, 84700, 85855, 107932, 122650, 134915, 156100, 171710, 188881, 245300, 269830, 343420, 377762, 429275, 539660, 674575, 755524, 858550, 944405, 1349150, 1717100, 1888810, 2698300, 3777620, 4722025, 9444050, 18888100]

約数ペア:

[(1, 18888100), (2, 9444050), (4, 4722025), (5, 3777620), (7, 2698300), (10, 1888810), (11, 1717100), (14, 1349150), (20, 944405), (22, 858550), (25, 755524), (28, 674575), (35, 539660), (44, 429275), (50, 377762), (55, 343420), (70, 269830), (77, 245300), (100, 188881), (110, 171710), (121, 156100), (140, 134915), (154, 122650), (175, 107932), (220, 85855), (223, 84700), (242, 78050), (275, 68684), (308, 61325), (350, 53966), (385, 49060), (446, 42350), (484, 39025), (550, 34342), (605, 31220), (700, 26983), (770, 24530), (847, 22300), (892, 21175), (1100, 17171), (1115, 16940), (1210, 15610), (1540, 12265), (1561, 12100), (1694, 11150), (1925, 9812), (2230, 8470), (2420, 7805), (2453, 7700), (3025, 6244), (3122, 6050), (3388, 5575), (3850, 4906), (4235, 4460)]