19749730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1973}}^1$

素因数の和:2011

約数の個数: 64

約数和(自身を含む): 47755008

約数和(自身を除く): 28005278

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 1973, 2002, 3946, 5005, 9865, 10010, 13811, 19730, 21703, 25649, 27622, 43406, 51298, 69055, 108515, 128245, 138110, 151921, 179543, 217030, 256490, 282139, 303842, 359086, 564278, 759605, 897715, 1410695, 1519210, 1795430, 1974973, 2821390, 3949946, 9874865, 19749730]

約数ペア:

[(1, 19749730), (2, 9874865), (5, 3949946), (7, 2821390), (10, 1974973), (11, 1795430), (13, 1519210), (14, 1410695), (22, 897715), (26, 759605), (35, 564278), (55, 359086), (65, 303842), (70, 282139), (77, 256490), (91, 217030), (110, 179543), (130, 151921), (143, 138110), (154, 128245), (182, 108515), (286, 69055), (385, 51298), (455, 43406), (715, 27622), (770, 25649), (910, 21703), (1001, 19730), (1430, 13811), (1973, 10010), (2002, 9865), (3946, 5005)]