19945380608

素因数分解:

$2^8\times {\mathrm{53}}^1\times {\mathrm{389}}^1\times {\mathrm{3779}}^1$

素因数の和:4237

約数の個数: 72

約数和(自身を含む): 40679074800

約数和(自身を除く): 20733694192

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 256, 389, 424, 778, 848, 1556, 1696, 3112, 3392, 3779, 6224, 6784, 7558, 12448, 13568, 15116, 20617, 24896, 30232, 41234, 49792, 60464, 82468, 99584, 120928, 164936, 200287, 241856, 329872, 400574, 483712, 659744, 801148, 967424, 1319488, 1470031, 1602296, 2638976, 2940062, 3204592, 5277952, 5880124, 6409184, 11760248, 12818368, 23520496, 25636736, 47040992, 51273472, 77911643, 94081984, 155823286, 188163968, 311646572, 376327936, 623293144, 1246586288, 2493172576, 4986345152, 9972690304, 19945380608]

約数ペア:

[(1, 19945380608), (2, 9972690304), (4, 4986345152), (8, 2493172576), (16, 1246586288), (32, 623293144), (53, 376327936), (64, 311646572), (106, 188163968), (128, 155823286), (212, 94081984), (256, 77911643), (389, 51273472), (424, 47040992), (778, 25636736), (848, 23520496), (1556, 12818368), (1696, 11760248), (3112, 6409184), (3392, 5880124), (3779, 5277952), (6224, 3204592), (6784, 2940062), (7558, 2638976), (12448, 1602296), (13568, 1470031), (15116, 1319488), (20617, 967424), (24896, 801148), (30232, 659744), (41234, 483712), (49792, 400574), (60464, 329872), (82468, 241856), (99584, 200287), (120928, 164936)]