990675

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:77

約数の個数: 72

約数和(自身を含む): 2205216

約数和(自身を除く): 1214541

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 35, 37, 45, 51, 63, 75, 85, 105, 111, 119, 153, 175, 185, 225, 255, 259, 315, 333, 357, 425, 525, 555, 595, 629, 765, 777, 925, 1071, 1275, 1295, 1575, 1665, 1785, 1887, 2331, 2775, 2975, 3145, 3825, 3885, 4403, 5355, 5661, 6475, 8325, 8925, 9435, 11655, 13209, 15725, 19425, 22015, 26775, 28305, 39627, 47175, 58275, 66045, 110075, 141525, 198135, 330225, 990675]

約数ペア:

[(1, 990675), (3, 330225), (5, 198135), (7, 141525), (9, 110075), (15, 66045), (17, 58275), (21, 47175), (25, 39627), (35, 28305), (37, 26775), (45, 22015), (51, 19425), (63, 15725), (75, 13209), (85, 11655), (105, 9435), (111, 8925), (119, 8325), (153, 6475), (175, 5661), (185, 5355), (225, 4403), (255, 3885), (259, 3825), (315, 3145), (333, 2975), (357, 2775), (425, 2331), (525, 1887), (555, 1785), (595, 1665), (629, 1575), (765, 1295), (777, 1275), (925, 1071)]