255222380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{271}}^1$

素因数の和:356

約数の個数: 108

約数和(自身を含む): 646609824

約数和(自身を除く): 391387444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 271, 310, 434, 490, 542, 620, 868, 961, 980, 1084, 1085, 1355, 1519, 1897, 1922, 2170, 2710, 3038, 3794, 3844, 4340, 4805, 5420, 6076, 6727, 7588, 7595, 8401, 9485, 9610, 13279, 13454, 15190, 16802, 18970, 19220, 26558, 26908, 30380, 33604, 33635, 37940, 42005, 47089, 53116, 58807, 66395, 67270, 84010, 94178, 117614, 132790, 134540, 168020, 188356, 235228, 235445, 260431, 265580, 294035, 411649, 470890, 520862, 588070, 823298, 941780, 1041724, 1176140, 1302155, 1646596, 1823017, 2058245, 2604310, 3646034, 4116490, 5208620, 7292068, 8232980, 9115085, 12761119, 18230170, 25522238, 36460340, 51044476, 63805595, 127611190, 255222380]

約数ペア:

[(1, 255222380), (2, 127611190), (4, 63805595), (5, 51044476), (7, 36460340), (10, 25522238), (14, 18230170), (20, 12761119), (28, 9115085), (31, 8232980), (35, 7292068), (49, 5208620), (62, 4116490), (70, 3646034), (98, 2604310), (124, 2058245), (140, 1823017), (155, 1646596), (196, 1302155), (217, 1176140), (245, 1041724), (271, 941780), (310, 823298), (434, 588070), (490, 520862), (542, 470890), (620, 411649), (868, 294035), (961, 265580), (980, 260431), (1084, 235445), (1085, 235228), (1355, 188356), (1519, 168020), (1897, 134540), (1922, 132790), (2170, 117614), (2710, 94178), (3038, 84010), (3794, 67270), (3844, 66395), (4340, 58807), (4805, 53116), (5420, 47089), (6076, 42005), (6727, 37940), (7588, 33635), (7595, 33604), (8401, 30380), (9485, 26908), (9610, 26558), (13279, 19220), (13454, 18970), (15190, 16802)]