18736850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:216

約数の個数: 72

約数和(自身を含む): 40570320

約数和(自身を除く): 21833470

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 121, 163, 190, 209, 242, 275, 326, 418, 475, 550, 605, 815, 950, 1045, 1210, 1630, 1793, 2090, 2299, 3025, 3097, 3586, 4075, 4598, 5225, 6050, 6194, 8150, 8965, 10450, 11495, 15485, 17930, 19723, 22990, 30970, 34067, 39446, 44825, 57475, 68134, 77425, 89650, 98615, 114950, 154850, 170335, 197230, 340670, 374737, 493075, 749474, 851675, 986150, 1703350, 1873685, 3747370, 9368425, 18736850]

約数ペア:

[(1, 18736850), (2, 9368425), (5, 3747370), (10, 1873685), (11, 1703350), (19, 986150), (22, 851675), (25, 749474), (38, 493075), (50, 374737), (55, 340670), (95, 197230), (110, 170335), (121, 154850), (163, 114950), (190, 98615), (209, 89650), (242, 77425), (275, 68134), (326, 57475), (418, 44825), (475, 39446), (550, 34067), (605, 30970), (815, 22990), (950, 19723), (1045, 17930), (1210, 15485), (1630, 11495), (1793, 10450), (2090, 8965), (2299, 8150), (3025, 6194), (3097, 6050), (3586, 5225), (4075, 4598)]