399485336

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 812160000

約数和(自身を除く): 412674664

約数列:

[1, 2, 4, 8, 19, 38, 47, 76, 94, 152, 188, 199, 281, 376, 398, 562, 796, 893, 1124, 1592, 1786, 2248, 3572, 3781, 5339, 7144, 7562, 9353, 10678, 13207, 15124, 18706, 21356, 26414, 30248, 37412, 42712, 52828, 55919, 74824, 105656, 111838, 177707, 223676, 250933, 355414, 447352, 501866, 710828, 1003732, 1062461, 1421656, 2007464, 2124922, 2628193, 4249844, 5256386, 8499688, 10512772, 21025544, 49935667, 99871334, 199742668, 399485336]

約数ペア:

[(1, 399485336), (2, 199742668), (4, 99871334), (8, 49935667), (19, 21025544), (38, 10512772), (47, 8499688), (76, 5256386), (94, 4249844), (152, 2628193), (188, 2124922), (199, 2007464), (281, 1421656), (376, 1062461), (398, 1003732), (562, 710828), (796, 501866), (893, 447352), (1124, 355414), (1592, 250933), (1786, 223676), (2248, 177707), (3572, 111838), (3781, 105656), (5339, 74824), (7144, 55919), (7562, 52828), (9353, 42712), (10678, 37412), (13207, 30248), (15124, 26414), (18706, 21356)]