18500900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^3\times {\mathrm{139}}^1$

素因数の和:186

約数の個数: 72

約数和(自身を含む): 44476320

約数和(自身を除く): 25975420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 139, 220, 242, 275, 278, 484, 550, 556, 605, 695, 1100, 1210, 1331, 1390, 1529, 2420, 2662, 2780, 3025, 3058, 3475, 5324, 6050, 6116, 6655, 6950, 7645, 12100, 13310, 13900, 15290, 16819, 26620, 30580, 33275, 33638, 38225, 66550, 67276, 76450, 84095, 133100, 152900, 168190, 185009, 336380, 370018, 420475, 740036, 840950, 925045, 1681900, 1850090, 3700180, 4625225, 9250450, 18500900]

約数ペア:

[(1, 18500900), (2, 9250450), (4, 4625225), (5, 3700180), (10, 1850090), (11, 1681900), (20, 925045), (22, 840950), (25, 740036), (44, 420475), (50, 370018), (55, 336380), (100, 185009), (110, 168190), (121, 152900), (139, 133100), (220, 84095), (242, 76450), (275, 67276), (278, 66550), (484, 38225), (550, 33638), (556, 33275), (605, 30580), (695, 26620), (1100, 16819), (1210, 15290), (1331, 13900), (1390, 13310), (1529, 12100), (2420, 7645), (2662, 6950), (2780, 6655), (3025, 6116), (3058, 6050), (3475, 5324)]