278869552

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{709}}^1$

素因数の和:822

約数の個数: 80

約数和(自身を含む): 611349760

約数和(自身を除く): 332480208

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 61, 62, 104, 122, 124, 208, 244, 248, 403, 488, 496, 709, 793, 806, 976, 1418, 1586, 1612, 1891, 2836, 3172, 3224, 3782, 5672, 6344, 6448, 7564, 9217, 11344, 12688, 15128, 18434, 21979, 24583, 30256, 36868, 43249, 43958, 49166, 73736, 86498, 87916, 98332, 147472, 172996, 175832, 196664, 285727, 345992, 351664, 393328, 562237, 571454, 691984, 1124474, 1142908, 1340719, 2248948, 2285816, 2681438, 4497896, 4571632, 5362876, 8995792, 10725752, 17429347, 21451504, 34858694, 69717388, 139434776, 278869552]

約数ペア:

[(1, 278869552), (2, 139434776), (4, 69717388), (8, 34858694), (13, 21451504), (16, 17429347), (26, 10725752), (31, 8995792), (52, 5362876), (61, 4571632), (62, 4497896), (104, 2681438), (122, 2285816), (124, 2248948), (208, 1340719), (244, 1142908), (248, 1124474), (403, 691984), (488, 571454), (496, 562237), (709, 393328), (793, 351664), (806, 345992), (976, 285727), (1418, 196664), (1586, 175832), (1612, 172996), (1891, 147472), (2836, 98332), (3172, 87916), (3224, 86498), (3782, 73736), (5672, 49166), (6344, 43958), (6448, 43249), (7564, 36868), (9217, 30256), (11344, 24583), (12688, 21979), (15128, 18434)]