254483216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:760

約数の個数: 80

約数和(自身を含む): 557964288

約数和(自身を除く): 303481072

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 61, 62, 104, 122, 124, 208, 244, 248, 403, 488, 496, 647, 793, 806, 976, 1294, 1586, 1612, 1891, 2588, 3172, 3224, 3782, 5176, 6344, 6448, 7564, 8411, 10352, 12688, 15128, 16822, 20057, 24583, 30256, 33644, 39467, 40114, 49166, 67288, 78934, 80228, 98332, 134576, 157868, 160456, 196664, 260741, 315736, 320912, 393328, 513071, 521482, 631472, 1026142, 1042964, 1223477, 2052284, 2085928, 2446954, 4104568, 4171856, 4893908, 8209136, 9787816, 15905201, 19575632, 31810402, 63620804, 127241608, 254483216]

約数ペア:

[(1, 254483216), (2, 127241608), (4, 63620804), (8, 31810402), (13, 19575632), (16, 15905201), (26, 9787816), (31, 8209136), (52, 4893908), (61, 4171856), (62, 4104568), (104, 2446954), (122, 2085928), (124, 2052284), (208, 1223477), (244, 1042964), (248, 1026142), (403, 631472), (488, 521482), (496, 513071), (647, 393328), (793, 320912), (806, 315736), (976, 260741), (1294, 196664), (1586, 160456), (1612, 157868), (1891, 134576), (2588, 98332), (3172, 80228), (3224, 78934), (3782, 67288), (5176, 49166), (6344, 40114), (6448, 39467), (7564, 33644), (8411, 30256), (10352, 24583), (12688, 20057), (15128, 16822)]