257924810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:924

約数の個数: 96

約数和(自身を含む): 579156480

約数和(自身を除く): 321231670

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 55, 65, 95, 110, 121, 130, 143, 190, 209, 242, 247, 286, 418, 494, 605, 715, 863, 1045, 1210, 1235, 1430, 1573, 1726, 2090, 2299, 2470, 2717, 3146, 4315, 4598, 5434, 7865, 8630, 9493, 11219, 11495, 13585, 15730, 16397, 18986, 22438, 22990, 27170, 29887, 32794, 47465, 56095, 59774, 81985, 94930, 104423, 112190, 123409, 149435, 163970, 180367, 208846, 213161, 246818, 298870, 360734, 426322, 522115, 617045, 901835, 1044230, 1065805, 1234090, 1357499, 1803670, 1984037, 2131610, 2344771, 2714998, 3968074, 4689542, 6787495, 9920185, 11723855, 13574990, 19840370, 23447710, 25792481, 51584962, 128962405, 257924810]

約数ペア:

[(1, 257924810), (2, 128962405), (5, 51584962), (10, 25792481), (11, 23447710), (13, 19840370), (19, 13574990), (22, 11723855), (26, 9920185), (38, 6787495), (55, 4689542), (65, 3968074), (95, 2714998), (110, 2344771), (121, 2131610), (130, 1984037), (143, 1803670), (190, 1357499), (209, 1234090), (242, 1065805), (247, 1044230), (286, 901835), (418, 617045), (494, 522115), (605, 426322), (715, 360734), (863, 298870), (1045, 246818), (1210, 213161), (1235, 208846), (1430, 180367), (1573, 163970), (1726, 149435), (2090, 123409), (2299, 112190), (2470, 104423), (2717, 94930), (3146, 81985), (4315, 59774), (4598, 56095), (5434, 47465), (7865, 32794), (8630, 29887), (9493, 27170), (11219, 22990), (11495, 22438), (13585, 18986), (15730, 16397)]