640460496

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:461

約数の個数: 160

約数和(自身を含む): 1861880832

約数和(自身を除く): 1221420336

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 39, 48, 52, 62, 78, 93, 104, 113, 124, 156, 186, 208, 226, 248, 293, 312, 339, 372, 403, 452, 496, 586, 624, 678, 744, 806, 879, 904, 1172, 1209, 1356, 1469, 1488, 1612, 1758, 1808, 2344, 2418, 2712, 2938, 3224, 3503, 3516, 3809, 4407, 4688, 4836, 5424, 5876, 6448, 7006, 7032, 7618, 8814, 9083, 9672, 10509, 11427, 11752, 14012, 14064, 15236, 17628, 18166, 19344, 21018, 22854, 23504, 27249, 28024, 30472, 33109, 35256, 36332, 42036, 45539, 45708, 54498, 56048, 60944, 66218, 70512, 72664, 84072, 91078, 91416, 99327, 108996, 118079, 132436, 136617, 145328, 168144, 182156, 182832, 198654, 217992, 236158, 264872, 273234, 354237, 364312, 397308, 430417, 435984, 472316, 529744, 546468, 708474, 728624, 794616, 860834, 944632, 1026379, 1092936, 1291251, 1416948, 1589232, 1721668, 1889264, 2052758, 2185872, 2582502, 2833896, 3079137, 3443336, 4105516, 5165004, 5667792, 6158274, 6886672, 8211032, 10330008, 12316548, 13342927, 16422064, 20660016, 24633096, 26685854, 40028781, 49266192, 53371708, 80057562, 106743416, 160115124, 213486832, 320230248, 640460496]

約数ペア:

[(1, 640460496), (2, 320230248), (3, 213486832), (4, 160115124), (6, 106743416), (8, 80057562), (12, 53371708), (13, 49266192), (16, 40028781), (24, 26685854), (26, 24633096), (31, 20660016), (39, 16422064), (48, 13342927), (52, 12316548), (62, 10330008), (78, 8211032), (93, 6886672), (104, 6158274), (113, 5667792), (124, 5165004), (156, 4105516), (186, 3443336), (208, 3079137), (226, 2833896), (248, 2582502), (293, 2185872), (312, 2052758), (339, 1889264), (372, 1721668), (403, 1589232), (452, 1416948), (496, 1291251), (586, 1092936), (624, 1026379), (678, 944632), (744, 860834), (806, 794616), (879, 728624), (904, 708474), (1172, 546468), (1209, 529744), (1356, 472316), (1469, 435984), (1488, 430417), (1612, 397308), (1758, 364312), (1808, 354237), (2344, 273234), (2418, 264872), (2712, 236158), (2938, 217992), (3224, 198654), (3503, 182832), (3516, 182156), (3809, 168144), (4407, 145328), (4688, 136617), (4836, 132436), (5424, 118079), (5876, 108996), (6448, 99327), (7006, 91416), (7032, 91078), (7618, 84072), (8814, 72664), (9083, 70512), (9672, 66218), (10509, 60944), (11427, 56048), (11752, 54498), (14012, 45708), (14064, 45539), (15236, 42036), (17628, 36332), (18166, 35256), (19344, 33109), (21018, 30472), (22854, 28024), (23504, 27249)]