257912928

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{757}}^1$

素因数の和:806

約数の個数: 216

約数和(自身を含む): 908854128

約数和(自身を除く): 650941200

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 52, 56, 63, 72, 78, 84, 91, 96, 104, 112, 117, 126, 144, 156, 168, 169, 182, 208, 224, 234, 252, 273, 288, 312, 336, 338, 364, 416, 468, 504, 507, 546, 624, 672, 676, 728, 757, 819, 936, 1008, 1014, 1092, 1183, 1248, 1352, 1456, 1514, 1521, 1638, 1872, 2016, 2028, 2184, 2271, 2366, 2704, 2912, 3028, 3042, 3276, 3549, 3744, 4056, 4368, 4542, 4732, 5299, 5408, 6056, 6084, 6552, 6813, 7098, 8112, 8736, 9084, 9464, 9841, 10598, 10647, 12112, 12168, 13104, 13626, 14196, 15897, 16224, 18168, 18928, 19682, 21196, 21294, 24224, 24336, 26208, 27252, 28392, 29523, 31794, 36336, 37856, 39364, 42392, 42588, 47691, 48672, 54504, 56784, 59046, 63588, 68887, 72672, 78728, 84784, 85176, 88569, 95382, 109008, 113568, 118092, 127176, 127933, 137774, 157456, 169568, 170352, 177138, 190764, 206661, 218016, 236184, 254352, 255866, 275548, 314912, 340704, 354276, 381528, 383799, 413322, 472368, 508704, 511732, 551096, 619983, 708552, 763056, 767598, 826644, 895531, 944736, 1023464, 1102192, 1151397, 1239966, 1417104, 1526112, 1535196, 1653288, 1791062, 2046928, 2204384, 2302794, 2479932, 2686593, 2834208, 3070392, 3306576, 3582124, 4093856, 4605588, 4959864, 5373186, 6140784, 6613152, 7164248, 8059779, 9211176, 9919728, 10746372, 12281568, 14328496, 16119558, 18422352, 19839456, 21492744, 28656992, 32239116, 36844704, 42985488, 64478232, 85970976, 128956464, 257912928]

約数ペア:

[(1, 257912928), (2, 128956464), (3, 85970976), (4, 64478232), (6, 42985488), (7, 36844704), (8, 32239116), (9, 28656992), (12, 21492744), (13, 19839456), (14, 18422352), (16, 16119558), (18, 14328496), (21, 12281568), (24, 10746372), (26, 9919728), (28, 9211176), (32, 8059779), (36, 7164248), (39, 6613152), (42, 6140784), (48, 5373186), (52, 4959864), (56, 4605588), (63, 4093856), (72, 3582124), (78, 3306576), (84, 3070392), (91, 2834208), (96, 2686593), (104, 2479932), (112, 2302794), (117, 2204384), (126, 2046928), (144, 1791062), (156, 1653288), (168, 1535196), (169, 1526112), (182, 1417104), (208, 1239966), (224, 1151397), (234, 1102192), (252, 1023464), (273, 944736), (288, 895531), (312, 826644), (336, 767598), (338, 763056), (364, 708552), (416, 619983), (468, 551096), (504, 511732), (507, 508704), (546, 472368), (624, 413322), (672, 383799), (676, 381528), (728, 354276), (757, 340704), (819, 314912), (936, 275548), (1008, 255866), (1014, 254352), (1092, 236184), (1183, 218016), (1248, 206661), (1352, 190764), (1456, 177138), (1514, 170352), (1521, 169568), (1638, 157456), (1872, 137774), (2016, 127933), (2028, 127176), (2184, 118092), (2271, 113568), (2366, 109008), (2704, 95382), (2912, 88569), (3028, 85176), (3042, 84784), (3276, 78728), (3549, 72672), (3744, 68887), (4056, 63588), (4368, 59046), (4542, 56784), (4732, 54504), (5299, 48672), (5408, 47691), (6056, 42588), (6084, 42392), (6552, 39364), (6813, 37856), (7098, 36336), (8112, 31794), (8736, 29523), (9084, 28392), (9464, 27252), (9841, 26208), (10598, 24336), (10647, 24224), (12112, 21294), (12168, 21196), (13104, 19682), (13626, 18928), (14196, 18168), (15897, 16224)]