256519704

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{331}}^1\times {\mathrm{659}}^1$

素因数の和:1013

約数の個数: 96

約数和(自身を含む): 749390400

約数和(自身を除く): 492870696

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 294, 331, 392, 588, 659, 662, 993, 1176, 1318, 1324, 1977, 1986, 2317, 2636, 2648, 3954, 3972, 4613, 4634, 5272, 6951, 7908, 7944, 9226, 9268, 13839, 13902, 15816, 16219, 18452, 18536, 27678, 27804, 32291, 32438, 36904, 48657, 55356, 55608, 64582, 64876, 96873, 97314, 110712, 129164, 129752, 193746, 194628, 218129, 258328, 387492, 389256, 436258, 654387, 774984, 872516, 1308774, 1526903, 1745032, 2617548, 3053806, 4580709, 5235096, 6107612, 9161418, 10688321, 12215224, 18322836, 21376642, 32064963, 36645672, 42753284, 64129926, 85506568, 128259852, 256519704]

約数ペア:

[(1, 256519704), (2, 128259852), (3, 85506568), (4, 64129926), (6, 42753284), (7, 36645672), (8, 32064963), (12, 21376642), (14, 18322836), (21, 12215224), (24, 10688321), (28, 9161418), (42, 6107612), (49, 5235096), (56, 4580709), (84, 3053806), (98, 2617548), (147, 1745032), (168, 1526903), (196, 1308774), (294, 872516), (331, 774984), (392, 654387), (588, 436258), (659, 389256), (662, 387492), (993, 258328), (1176, 218129), (1318, 194628), (1324, 193746), (1977, 129752), (1986, 129164), (2317, 110712), (2636, 97314), (2648, 96873), (3954, 64876), (3972, 64582), (4613, 55608), (4634, 55356), (5272, 48657), (6951, 36904), (7908, 32438), (7944, 32291), (9226, 27804), (9268, 27678), (13839, 18536), (13902, 18452), (15816, 16219)]