251436640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2467}}^1$

素因数の和:2509

約数の個数: 144

約数和(自身を含む): 744457392

約数和(自身を除く): 493020752

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1120, 1274, 1456, 1568, 1820, 1960, 2080, 2467, 2548, 2912, 3185, 3640, 3920, 4934, 5096, 6370, 7280, 7840, 9868, 10192, 12335, 12740, 14560, 17269, 19736, 20384, 24670, 25480, 32071, 34538, 39472, 49340, 50960, 64142, 69076, 78944, 86345, 98680, 101920, 120883, 128284, 138152, 160355, 172690, 197360, 224497, 241766, 256568, 276304, 320710, 345380, 394720, 448994, 483532, 513136, 552608, 604415, 641420, 690760, 897988, 967064, 1026272, 1122485, 1208830, 1282840, 1381520, 1571479, 1795976, 1934128, 2244970, 2417660, 2565680, 2763040, 3142958, 3591952, 3868256, 4489940, 4835320, 5131360, 6285916, 7183904, 7857395, 8979880, 9670640, 12571832, 15714790, 17959760, 19341280, 25143664, 31429580, 35919520, 50287328, 62859160, 125718320, 251436640]

約数ペア:

[(1, 251436640), (2, 125718320), (4, 62859160), (5, 50287328), (7, 35919520), (8, 31429580), (10, 25143664), (13, 19341280), (14, 17959760), (16, 15714790), (20, 12571832), (26, 9670640), (28, 8979880), (32, 7857395), (35, 7183904), (40, 6285916), (49, 5131360), (52, 4835320), (56, 4489940), (65, 3868256), (70, 3591952), (80, 3142958), (91, 2763040), (98, 2565680), (104, 2417660), (112, 2244970), (130, 1934128), (140, 1795976), (160, 1571479), (182, 1381520), (196, 1282840), (208, 1208830), (224, 1122485), (245, 1026272), (260, 967064), (280, 897988), (364, 690760), (392, 641420), (416, 604415), (455, 552608), (490, 513136), (520, 483532), (560, 448994), (637, 394720), (728, 345380), (784, 320710), (910, 276304), (980, 256568), (1040, 241766), (1120, 224497), (1274, 197360), (1456, 172690), (1568, 160355), (1820, 138152), (1960, 128284), (2080, 120883), (2467, 101920), (2548, 98680), (2912, 86345), (3185, 78944), (3640, 69076), (3920, 64142), (4934, 50960), (5096, 49340), (6370, 39472), (7280, 34538), (7840, 32071), (9868, 25480), (10192, 24670), (12335, 20384), (12740, 19736), (14560, 17269)]