256749948

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{433}}^1$

素因数の和:644

約数の個数: 144

約数和(自身を含む): 805045696

約数和(自身を除く): 548295748

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 181, 182, 234, 252, 273, 362, 364, 433, 468, 543, 546, 724, 819, 866, 1086, 1092, 1267, 1299, 1629, 1638, 1732, 2172, 2353, 2534, 2598, 3031, 3258, 3276, 3801, 3897, 4706, 5068, 5196, 5629, 6062, 6516, 7059, 7602, 7794, 9093, 9412, 11258, 11403, 12124, 14118, 15204, 15588, 16471, 16887, 18186, 21177, 22516, 22806, 27279, 28236, 32942, 33774, 36372, 39403, 42354, 45612, 49413, 50661, 54558, 65884, 67548, 78373, 78806, 84708, 98826, 101322, 109116, 118209, 148239, 156746, 157612, 197652, 202644, 235119, 236418, 296478, 313492, 354627, 470238, 472836, 548611, 592956, 705357, 709254, 940476, 1018849, 1097222, 1410714, 1418508, 1645833, 2037698, 2194444, 2821428, 3056547, 3291666, 4075396, 4937499, 6113094, 6583332, 7131943, 9169641, 9874998, 12226188, 14263886, 18339282, 19749996, 21395829, 28527772, 36678564, 42791658, 64187487, 85583316, 128374974, 256749948]

約数ペア:

[(1, 256749948), (2, 128374974), (3, 85583316), (4, 64187487), (6, 42791658), (7, 36678564), (9, 28527772), (12, 21395829), (13, 19749996), (14, 18339282), (18, 14263886), (21, 12226188), (26, 9874998), (28, 9169641), (36, 7131943), (39, 6583332), (42, 6113094), (52, 4937499), (63, 4075396), (78, 3291666), (84, 3056547), (91, 2821428), (117, 2194444), (126, 2037698), (156, 1645833), (181, 1418508), (182, 1410714), (234, 1097222), (252, 1018849), (273, 940476), (362, 709254), (364, 705357), (433, 592956), (468, 548611), (543, 472836), (546, 470238), (724, 354627), (819, 313492), (866, 296478), (1086, 236418), (1092, 235119), (1267, 202644), (1299, 197652), (1629, 157612), (1638, 156746), (1732, 148239), (2172, 118209), (2353, 109116), (2534, 101322), (2598, 98826), (3031, 84708), (3258, 78806), (3276, 78373), (3801, 67548), (3897, 65884), (4706, 54558), (5068, 50661), (5196, 49413), (5629, 45612), (6062, 42354), (6516, 39403), (7059, 36372), (7602, 33774), (7794, 32942), (9093, 28236), (9412, 27279), (11258, 22806), (11403, 22516), (12124, 21177), (14118, 18186), (15204, 16887), (15588, 16471)]