28991270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1637}}^1$

素因数の和:1685

約数の個数: 64

約数和(自身を含む): 67931136

約数和(自身を除く): 38939866

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 110, 115, 154, 161, 230, 253, 322, 385, 506, 770, 805, 1265, 1610, 1637, 1771, 2530, 3274, 3542, 8185, 8855, 11459, 16370, 17710, 18007, 22918, 36014, 37651, 57295, 75302, 90035, 114590, 126049, 180070, 188255, 252098, 263557, 376510, 414161, 527114, 630245, 828322, 1260490, 1317785, 2070805, 2635570, 2899127, 4141610, 5798254, 14495635, 28991270]

約数ペア:

[(1, 28991270), (2, 14495635), (5, 5798254), (7, 4141610), (10, 2899127), (11, 2635570), (14, 2070805), (22, 1317785), (23, 1260490), (35, 828322), (46, 630245), (55, 527114), (70, 414161), (77, 376510), (110, 263557), (115, 252098), (154, 188255), (161, 180070), (230, 126049), (253, 114590), (322, 90035), (385, 75302), (506, 57295), (770, 37651), (805, 36014), (1265, 22918), (1610, 18007), (1637, 17710), (1771, 16370), (2530, 11459), (3274, 8855), (3542, 8185)]