247087890

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1303}}^1$

素因数の和:1373

約数の個数: 144

約数和(自身を含む): 765281088

約数和(自身を除く): 518193198

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 43, 45, 49, 63, 70, 86, 90, 98, 105, 126, 129, 147, 210, 215, 245, 258, 294, 301, 315, 387, 430, 441, 490, 602, 630, 645, 735, 774, 882, 903, 1290, 1303, 1470, 1505, 1806, 1935, 2107, 2205, 2606, 2709, 3010, 3870, 3909, 4214, 4410, 4515, 5418, 6321, 6515, 7818, 9030, 9121, 10535, 11727, 12642, 13030, 13545, 18242, 18963, 19545, 21070, 23454, 27090, 27363, 31605, 37926, 39090, 45605, 54726, 56029, 58635, 63210, 63847, 82089, 91210, 94815, 112058, 117270, 127694, 136815, 164178, 168087, 189630, 191541, 273630, 280145, 319235, 336174, 383082, 392203, 410445, 504261, 560290, 574623, 638470, 784406, 820890, 840435, 957705, 1008522, 1149246, 1176609, 1680870, 1915410, 1961015, 2353218, 2521305, 2745421, 2873115, 3529827, 3922030, 5042610, 5490842, 5746230, 5883045, 7059654, 8236263, 11766090, 13727105, 16472526, 17649135, 24708789, 27454210, 35298270, 41181315, 49417578, 82362630, 123543945, 247087890]

約数ペア:

[(1, 247087890), (2, 123543945), (3, 82362630), (5, 49417578), (6, 41181315), (7, 35298270), (9, 27454210), (10, 24708789), (14, 17649135), (15, 16472526), (18, 13727105), (21, 11766090), (30, 8236263), (35, 7059654), (42, 5883045), (43, 5746230), (45, 5490842), (49, 5042610), (63, 3922030), (70, 3529827), (86, 2873115), (90, 2745421), (98, 2521305), (105, 2353218), (126, 1961015), (129, 1915410), (147, 1680870), (210, 1176609), (215, 1149246), (245, 1008522), (258, 957705), (294, 840435), (301, 820890), (315, 784406), (387, 638470), (430, 574623), (441, 560290), (490, 504261), (602, 410445), (630, 392203), (645, 383082), (735, 336174), (774, 319235), (882, 280145), (903, 273630), (1290, 191541), (1303, 189630), (1470, 168087), (1505, 164178), (1806, 136815), (1935, 127694), (2107, 117270), (2205, 112058), (2606, 94815), (2709, 91210), (3010, 82089), (3870, 63847), (3909, 63210), (4214, 58635), (4410, 56029), (4515, 54726), (5418, 45605), (6321, 39090), (6515, 37926), (7818, 31605), (9030, 27363), (9121, 27090), (10535, 23454), (11727, 21070), (12642, 19545), (13030, 18963), (13545, 18242)]